Simplification
Directions (01-10): What value should come in place of question mark (?) in the following questions?
1. Question
2030 ÷ √841 + 12.5 * 24 + ? = 47 * 11
A.143
B.147
C.151
D.156
E.161
Explanation
Answer: B
2030 ÷ √841 + 12.5 * 24 + ? = 47 * 11
70 + 300 + ? = 517
? = 147
2. Question
6300 ÷ 35 + 15 * 28 – 60 % of 420 = ?
A.342
B.345
C.348
D.352
E.358
Explanation
Answer: C
6300 ÷ 35 + 15 * 28 – 60 % of 420 = ?
180 + 420 – 252 = ?
348 = ?
3. Question
212 + ?2 - 32= 45 % of 180 + 80 * 8
A.16
B.17
C.18
D.19
E.20
Explanation
Answer: B
212 + ?2 - 32= 45 % of 180 + 80 * 8
441 + ?2 – 9 = 81 + 640
?2 = 289
? = 17
4. Question
315 ÷ √225 – 6.5 * 12 + 55% of 240 = ?
A.65
B.75
C.85
D.55
E.115
Explanation
Answer: B
315 ÷ √225 – 6.5 * 12 + 55% of 240 = ?
21 – 78 + 132 = ?
? = 75
5. Question
45 % of 180 + √144 * 8 = ?2 + 70 % of 80
A.10
B.11
C.12
D.13
E.14
Explanation
Answer: B
45 % of 180 + √144 * 8 = ?2 + 70 % of 80
81 + 96 = ?2 + 56
? = 11
6. Question
420 ÷ 7 + 20 % of 140 + ? * 13 = 61 * √16
A.12
B.10
C.13
D.11
E.14
Explanation
Answer: A
420 ÷ 7 + 20 % of 140 + ? * 13 = 61 * √16
60 + 28 + ? * 13 = 244
? * 13 = 156
? = 12
7. Question
√529 * 5 – 15% of 220 + ? = 120% of 160
A.100
B.110
C.120
D.140
E.130
Explanation
Answer: B
√529 * 5 – 15% of 220 + ? = 120% of 160
23 * 5 – 33 + ? = 192
? = 110
8. Question
(0.11)94 ÷0.00164 = (0.12)?
A.-34
B.-49
C.-40
D.-61
E.-46
Explanation
Answer: B
(0.11)94÷ (0.13)64 = (0.12)?
(0.1)(1*94 – 3*64) = (0.12)?
SO,
? = (1*94-3*64 )/2 = -49
9. Question
52% of 72% of 1/4th of  15000=?
A.4701
B.1701
C.2601
D.1404
E.None of these
Explanation
Answer: D
 0.52 x 0.72 x 0.25 x 15000 =?
? = 1404
10. Question
24/316 *79/168 * ? = 26
A.730
B.728
C.732
D.736
E.718
Explanation
Answer: B
? = (26 *168 * 316)/(24 * 79)
= 26 * (168/24) * (316/79)
= 26 * 7 * 4 = 728