Directions (1-5): What will come in place of the question mark (?) in the following questions?
Q1. 4003 × 77 - 21015 = ? × 116
(a) 2477
(b) 2478
(c) 2467
(d) 2476
(e) None of these
Q2. (4444 ÷ 40) + (645 ÷ 25) + (3991 ÷ 26) = ?
(a) 280.4
(b) 290.4
(c) 295.4
(d) 285.4
(e) None of these
(a) 303.25
(b) 305.75
(c) 303 3/4
(d) 305 1/4
(e) None of these
(a) 4810
(b) 4980
(c) 4890
(d) 4930
(e) 4850
Q5. 335.01 × 244.99 ÷ 55 = ?
(a) 1490
(b) 1550
(c) 1420
(d) 1590
(e) 1400
Directions (6-10): What should come in place of the question mark (?) in the following number series?
Q6. 15 25 40 130 ?
(a) 500
(b) 520
(c) 490
(d) 480
(e) None of these
Q7. 186 94 48 25 ?
(a) 13.5
(b) 14.8
(c) 12.5
(d) 14
(e) None of these
Q8.15528 3880 968 240 ?
(a) 60
(b) 58
(c) 59
(d) 62
(e) None of these
Q9. 384 381 372 345 264 ?
(a) 23
(b) 25
(c) 43
(d) 24
(e) None of these
Q10. 282 286 302 ? 402
(a) 366
(b) 318
(c) 326
(d) 338
(e) None of these
ANSWERS :
S1. Ans.(d)
Sol. ? × 116 = 4003 × 77 - 21015
Or, ? × 116 = 308231 - 21015 = 287216
Or, ? × 116 = 287216
∴ ? =287216/116=2476
S2. Ans.(b)
Sol. ? = (4444 ÷ 40) + (645 ÷ 25) + (3991 ÷ 26)
=4440/40+645/25+3991/26
= 111.1 + 25.8 + 153.5 = 290.4
S5. Ans.(a)
Sol. ? = 335.01 × 244.99 ÷ 55
= 335 × 245 ÷ 55
=335×245/55=82075/55=1492.27 ≈1490
S6. Ans.(e)
Sol. The series is ×1 + 10, ×2 - 10, ×3 + 10, ×4 - 10, ×5 + 10
130 × 4 - 10 = 520 - 10 = 510
S7. Ans.(a)
Sol. The series is ÷2 + 1.
25/2+1=13.5
S8. Ans.(b)
The series is ÷4 - 2.
S9. Ans.(e)
Sol. The series is -3, -9, -27, -81, -243
264 - 243 = 21
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