# Aptitude Questions (Simplification) for AAO/SO Exams

Aptitude Questions (Simplifications) for Upcoming AAO/SO Exams Set-8:
Dear Readers, Important Practice Aptitude Questions for Upcoming AAO/SO Exams was given here with Solutions. Aspirants those who are preparing for the examination can use this.

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Directions ( Q. 1 -5): What Value should come in place of question mark (?) in the following questions?

1). (3 / 5)  of  (2 / 7)  of  (35 / 18) of ? = 405
a)    1375
b)    1275
c)    1285
d)    1215
e)    1325

2). 24 % of 6550 โ 175 % of ? = 697
a)    500
b)    475
c)    675
d)    825
e)    975

3). (1/7)  of  254  of  (1/8)  =  ? รท 21
a)    96(1 / 4)
b)    95(1 / 7)
c)    98(2 / 7)
d)    96 (3 / 7)
e)    95(1 / 4)

4). (2892 รท12) ร 13 = ? % of 2410
a)    241
b)    342
c)    230
d)    130
e)    150

5). [(โ(81 ร 64) / (4.5)] ร 18 = (?)2 – 153
a)    21
b)    23
c)    17
d)    19
e)    22

Directions (Q. 6 -10): What approximate value should come in place of question mark (?)  in the following questions ? (Note: you are not expected to calculate the exact value.)

6). 799.99 รท 12.492 = ? โ 323.469
a)    380
b)    382
c)    388
d)    378
e)    372
7). (โ728.68 รท 2.7) + 224 = (18)?
a)    2
b)    – 2
c)    4
d)    โ 5
e)    – 4

8). (4429 รท 44.3) ร 18.75 โ 289.59 = ?
a)    1485
b)    1585
c)    1425
d)    1685
e)    1365

9). (1 / 8) of 2768 + 2835.42 = ? –  297
a)    3528
b)    3478
c)    3472
d)    3078
e)    3178

10). 238.49 + 69 % of 791.213 = (?)2
a)    27
b)    28
c)    30
d)    31
e)    29

1). d) 2). a) 3). e) 4). d) 5). a) 6). c) 7). a) 8). b) 9). b) 10). b)

Detailed Explanation:

1. (3 / 5) ร (2 / 7) ร (35 / 18) ร ? = 405
Or, ? = [(405 ร 5 ร 7 ร18) / (3 ร 2 ร 35)] = 1215

2. 24 % of 6550 โ 175 % of  ? = 697
Or, [(24 ร 6550) / 100 ] โ [175 ร ?/ 100] = 697
or, [(1572 – 697) ร 100] / 175 = ?
:. ? = (87500 / 175) = 500

3. 254 ร (1 / 7) ร (1 / 8) = ? รท 21
Or, ? = [(254 ร 21) / 56] = 95 (1 / 4)

4.  [(? ร 2410) / 100] = (2892 รท 12 ) ร 13
= 241 ร 13 = 3133
:.? = [(3133 ร 1000) / 2410] = 130

5. [(โ(81 ร 64) รท (4.5))] ร 18 = (?)2 โ 153
Or, (9 ร 8 รท 4.5) ร 18 = (?)2  – 153
Or, 16 ร 18 + 153 = (?)2
:. ? = โ(288 + 153) = โ441 = 21

6. ? โ 323.5 โ 800 รท 12.5
Or, ?  โ 64 + 323.5 = 387.5 โ 388

7. (18) โ (27 รท 2.7)2 + 224
=100 + 224 = 324 โ (18)2
Or, (18)? โ 182
:. ? โ 2

8. ? โ (4430 รท 44. 3) ร 18.75 โ 290
=100 ร 18.75 โ 290
= 1875 โ 290 = 1585

9. ? โ 297 = (1/8) ร 2768 + 2835.42
โ 346 + 2835 = 3181
:. ? = 3181 + 297 = 3478

10. (?)2 โ 69 % of 791 + 238.5
= [(69 * 791) / 100] + 238.5
= 546 + 238.5 = 784.5 โ 784
:. ? = โ784 = 28