Aptitude Questions: Simplification Set 29

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What should come in place of question mark (?) in the following questions: –

1. (0.04)² ÷ (0.008) * (0.2)6 = (0.2)?
A. 7
B. 6
C. 5
D. 4
E. 3
Answer – A. 7
Explanation :
(0.04)² ÷ (0.008) * (0.2)6 = (0.2)?
= 0.21 * 0.26 = (0.2)7
2. 13.141 + 31.417 – 27.118 + 15.247-14.214 = ?
A. 18.465
B. 18.473
C. 18.688
D. 18.645
E. 18.697
Answer – B. 18.473
Explanation :
13.141 + 31.417 – 27.118 + 15.247-14.214 = ?
59.805 – 41.332 = 18.473
3. 36*14 – 49*784÷112
A. 151
B. 171
C. 141
D. 161
E. 131
Explanation :
36*14 – 49*784÷112
504 – 343 = 161
4. √676 * 12 – 864÷36 = ? + 61
A. 234
B. 227
C. 232
D. 244
E. 256
Answer – B. 227
Explanation :
√676 * 12 – 864÷36 = ? + 61
x = 227
5. 468 ÷ 39*15 + 166 = (?)³ + 130
A. 5
B. 6
C. 4
D. 7
E. 2
Explanation :
12 * 15 + 166 = (?)³ + 130
(?)³ = 216
6. 185% of 600 + 25% of 240 = ?% of 1000
A. 136
B. 128
C. 117
D. 121
E. None of these
Answer – C. 117
Explanation :
185% of 600 + 25% of 240 = ?% of 1000
1110 + 60 = x% of 1000
7. 2/3 of 7/5 of 75% of 640 = ?
A. 396
B. 448
C. 454
D. 382
E. 424
Answer – B. 448
Explanation :
2/3 of 7/5 of 75% of 640 = 2/3 * 7/5 * 75/100 * 640 = 64 * 7 = 448
8. 15.4 * 14.5 * x = 2798.75
A. 15.2
B. 15.3
C. 12.9
D. 12.5
E. 19.2
Answer – D. 12.5
Explanation :
15.4 * 14.5 * x = 2798.75
x = 2798.75/223.3 = 12.5
9. 7344 + (5.4)2 + √? = 7437.16
A.4156
B.4401
C.4096
D.4553
E.4335
Explanation :
7344 + (5.4)2 + √? = 7437.16
√? = 7408 – 7344 = 64  => ? = 4096
10. 567 ÷ (10.8 * 2.5) ÷ 3 = ?
A. 6
B. 7
C. 8
D. 4
E. 5