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Friday, 7 October 2016

Answers To Probability Quiz-1

1) A
2) A
3) C
4) C
5) D
6) B

1) A basket contains 3 mangoes, 2 apples and 1 orange. Then what is the probability of choosing either an apple or an orange ?

A. 1/2
B. 1/3
C. 2/3
D. 3/4

2) There are 3 types of balls ( Cricket ball, Football and Tennis ball) i.e. 2 Cricket balls, 2 Footballs and 2 Tennis balls. If any 2 balls are placed in each of the 3 boxes, then what is the probability of selected box containing atleast 1 Cricket ball ?

A. 1/2
B. 2/3
C. 1/4
D. 1/6

3) A box contains 3 red , 4 green and 2 yellow pens. 2 pens are drawn at randomn. Wht is the probability of drawing pens of the same color ?

A. 1/3
B. 2/3
C. 5/18
D. 13/18

4) Two dices are thrown simultaneously. What is the probability that the sum of the numbers on dices is a prime number ?

A. 11/18
B. 15/36
C. 7/18
D. 4/9

5) Both Suresh and Ramesh gave IBPS exam. The probability of clearing the exam for Suresh is 2/5 and for Ramesh is 3/4. What is the probability that neither of them clears the exam ?

A. 3/10
B. 7/10
C. 7/20
D.3/20

6) 'A' and 'B' both plays a game where you have to clear the previous round t get to the next round. There are 2 rounds to clear the game. The probability of clearing both rounds are same for 'A' which is 0.65 and same goes for 'B' its probability is 0.45. Then what is the probability that only one of them cleared the game ?

A. 0.40
B. 0.45
C. 0.50
D. 0.42

Answers To Time, Work and Distance Quiz

1) B
2) C
3) D
4) A
5) A
6) A

1) In a race, Raju is given a start of 128 meter by Gollu. If Gollu also gives Bappu a start of 4 meter in a 100 meter race, then who out of Raju and Bappu will win a race of 1.5 miles and by what margin ?

A. Raju wins by 100 meter
B. Raju losses by 100 meter
C. Bappu wins by 200 meter
D. Bappu losses by 200 meter

2). A, B, and C read story of 78 pages. 'A' reads at 2min/page , 'B' at 3min/page and 'C' at 4min/page. If they divide the story into 3 parts so that all 3 of them spend the equal amount of time on the article, find the number of pages read by 'B' ?

A. 30
B. 36
C. 24
D. 25

3) S and V walk up an escalator. Escalator moves at constant speed. S takes 3 steps for every 2 steps of V. If S takes 25 steps and V takes 20 steps to reach the top. Without escalator how many steps would it take to reach the top ?

A. 45
B. 30
C. 60
D, 50

4) A truck travelling at 70 km/hr uses 30% more diesel to travel a certain distance than it does when it travels at the speed of 50 km/hr. If the truck travel 19.5 km on a litre of diesel at 50 km/hr, how far can the truck travel 10 litres of diesel at a speed of 70 km/hr ?

A. 150 km
B. 120 km
C. 100 km
D. 180 km

5) Two typist undertake a job. The 2nd typist start working one hour after the 1st. 3 hours after after 1st typist has begun, there is still 9/20th work left. Each has done half of the work on the assignment. How many years would it take each one to do the whole job individually ?

A. 10, 8
B. 12, 6
C. 14, 4
D. 16, 2

6) If 15 men or 25 women or 30 boys can do a piece of work in 20 days by working 10 hrs daily then how many men with 10 women and 18 boys can do twice the work in 25 days by working 8 hours daily ?

A. 15
B. 20
C. 25
D. 30

Domain of a function

In this lesson we are learning about domain of a function, its definition, how to calculate it and some solved examples illustrating the points regarding it.

Solution To Profit/Loss Quiz

This is the detailed solution to the Profit/Loss Quiz. For more content on the topic keep tuning in the blog as more is coming.

Profit/Loss Quiz

In this lesson, some practice questions on the topic Profit/Loss are given below. Its an important topic for competition exams like SSC, IBPS, etc. so if you are an aspirant then this will be really useful to you.

Detailed solution to the questions are given in a separate post on the blog if you want to check it out.

1) C
2) B
3) C
4) D
5) C
6) C
7) A
8) B

1) How many 4 letter words can be formed out of 7 capital letters, 3 vowels and 5 consonants if each word starts with a capital letter and contains atleast one vowel ?

A. 1900 words
B. 1832 words
C. 1932 words
D. 1800 words

2) In how many ways 8 delegates of 8 states can be seated in a round table conference so that 4 particular delegates always sit together ?

A. 432 ways
B. 576 ways
C. 256 ways
D. 536 ways

3) Find the number of ways of distributing 6 different balls into 4 identical baskets such that there is atleast one ball in each basket.

A. 40 ways
B. 55 ways
C. 65 ways
D. 50 ways

4) How many 3-digit numbers exist such that the digits are in an increasing order from left to right ?

A. 86
B. 82
C. 85
D. 84

5) A 5-digit number is formed using the digits 1, 3, 5, 7 and 9 without repeating one of them. What is the sum of all such possible numbers ?

A. 666600
B. 666000
C. 666660
D. 666666

6) There are 6 stops between Kota and Bikaner. How many types of tickets should be printed to service all kinds of passengers travelling either way on the bus ?

A. 64 types
B. 42 types
C. 56 types
D. 64 types

7) In how many ways can a family consisting of a father, a mother and 8 siblings (4 boys, 4 girls) sit around a circular table such that the parents sit together and males and females are alternate ?

A. 1152 ways
B. 1200 ways
C. 1000 ways
D. 1176 ways

8) There are 6 boxes numbered 1, 2, 3, 4, 5, 6. Each box is to be filled up either with red or green ball in such a way that atleast 1 box contains a green ball and the boxes containing green balls are consecutively numbered. The total no. of ways in which this can be done is ?

A. 25 ways
B. 21 ways
C. 18 ways
D. 16 ways

Answers To Mixture and Alligation Quiz

1). A
2). B
3). B
4). C
5). A
6). C
7). B
8). C

1) A bottle containing 30 litres of milk, 6 litres are drawn out and same amount is filled with water. The same process is repeated twice more, how much milk is left in the bottle ?

A. 15.36 litres

B. 14.27 litres

C. 15 litres

D. 14 litres

2) How many litres of the 10 litres (milk + water) in the ratio 2:5 be replaced with pure milk so resultant mixture contains (milk + water) in the ratio 3:4 ?

A. 2 litres

B. 2.5 litres

C. 3 litres

D.3.5 litres

3) A milkman professes to sell his milk at cost price but he mixes it with water and thereby gains 25%. The percentage of water in the mixture is :

A. 25%

B. 20%

C. 30%

D.35%

4) A shopkeeper has 1000 kg of sugar, part of which he sells at 8% profit and the rest at 18% profit. He gains 14% on the whole. The quantity sold at 18% profit is :

A. 500 kg

B. 400 kg

C. 600 kg

D. 700 kg

5) 300 gm of sugar solution has 40% sugar in it. How much sugar added to make it 50% in the solution ?

A. 60 gm

B. 50 gm

C. 45 gm

D. 55 gm

6) A person has a chemical of Rs 25/ltr. In what ratio the chemical be mixed with water so that after selling the mixture at Rs 20/ltr he may get a profit of 25% ?

A. 9:16

B. 9:7

C. 16:9

D. 7:9

7) A trader has 50 kg of rice, a part of which he sells at 14% profit and the rest at 6% loss. On the whole his loss is 4%. What is the quantity sold at 6% loss ?

A. 40 kg

B. 45 kg

C. 50 kg

D. 60 kg

8) In what ratio three kinds of rice costing Rs 1.2, Rs 1.44 and Rs 1.74 per kg should be mixed so the mixture is worth Rs 1.41 per kg ?

A. 25:45:8

B. 27:23:6

C. 11:77:7

D. 11:45:7

Solution To Simple and Compound Interest Quiz

This is the detailed solution to the Simple and Compound Interest Quiz. For more content on the topic keep tuning in the blog as more is coming.

Simple and Compound Interest Quiz

In this lesson, some practice questions on the topic Simple and Compound Interest are given below. Its an important topic for competition exams like SSC, IBPS, etc. so if you are an aspirant then this will be really useful to you.

Detailed solution to the questions are given in a separate post on the blog if you want to check it out.

Finding the value of a function

In this lesson we are learning how to find the value of a function at a given input value when the function expression is given through some examples.

Introduction to functions

In this lesson we are discussing function. The definition of a function, its condition and its examples. Also we are learning how to identify a function through examples.

Solution To Compound Interest Quiz

This is the detailed solution to the Compound Interest Quiz. For more content on the topic keep tuning in the blog as more is coming.

z. For more content on the topic keep tuning in the blog as more is coming.

Quiz on Compound Interest

In this lesson, some practice questions on the topic Compound Interest are given below. Its an important topic for competition exams like SSC, IBPS, etc. so if you are an aspirant then this will be really useful to you.

Detailed solution to the questions are given in a separate post on the blog if you want to check it out.

Solution To Boats and Streams Quiz

This is the detailed solution to the Boats and Streams Quiz. For more content on the topic keep tuning in the blog as more is coming.

Quiz on Boats and Streams

In this lesson, some practice questions on the topic Boats and Streams are given below. Its an important topic for competition exams like SSC, IBPS, etc. so if you are an aspirant then this will be really useful to you.

Detailed solution to the questions are given in a separate post on the blog if you want to check it out.

No Solution

In this lesson we are learning about one of the types of linear system with two variables i.e. no solution. Conditions for a pair of linear equations to have a no solution.

Infinitely Many Solution

In this lesson we are learning about one of the types of linear system with two variables i.e. infinitely many solution. Conditions for a pair of linear equations to have a infinitely many solution.

Unique Solution

In this lesson we are learning about one of the types of linear system with two variables i.e. unique solution. Conditions for a pair of linear equations to have a unique solution.

Solving a pair of linear equations

In this lesson we are learning to solve a pair of linear equation in two variables using elimination method through an illustrative example.

Solution To Time and Work Quiz-2

This is the detailed solution to the Time and Work Quiz-1. For more content on the topic keep tuning in the blog as more is coming.

Time and Work Quiz-2

In this lesson some practice questions on the topic Time and Work are given below. Its an important topic for competition exams like SSC, IBPS, etc. so if you are an aspirant then this will be really useful to you.

Detailed solution to the questions are given in a separate post on the blog only if you want to check it out.