# Quantitative Aptitude: Simplification Questions Set 50

1. 45% of 840 – 65% of 420 – 2 * ? = 43
28
31
35
22
None
Option B
Solution:
45% of 840 – 65% of 420 – 2 * x = 43
378-273-2x=43
105-2x=43
2x=105-43
2x=62
x=31.
2. [6/4 × 32/8 × 6/16] + [6/16 × 24/8 × 36/4] = ?
83/8
94/5
99/8
99/5
None
Option C
Solution:
[6/4 × 32/8 × 6/16] + [6/16 × 24/8 × 36/4] = x
9/4+81/8=x
x=(18+81)/8
x=99/8.
3. 522/29*10 + 126 = ? + 250
55
58
56
66
None
Option C
Solution:
522/29*10+126= x + 250
180+126-250=x
x=56.
4. 3521 + 320.6 + 1215.35 – 4522.62 + 1455.3 = ?
1877.45
1926.30
1845.33
1989.63
None
Option D
Solution:
3521+320.6+1215.35-4522.62+1455.3=x
6512.25-4522.62=x
x=1989.63.
5. 3/9 of 2520 + 75% of 550 = ?2 – 38
36
34
26
44
None
Option A
Solution:
3/9 of 2520 + 75% of 550 = x2 – 38
840+418+38=x2
1296=x2
x=36.
6. [2√392 – 21] + (√8-7)2 = ?2
8
6
9
11
None
Option B
Solution:
[2√392 – 21] + (√8-7)2 = x2
[2 √49*8 -21] + 8+ 49 -14√8= x2
14√8 -21 +57 -14√8= x2
x2=36
x=6.
7. (2 5/3 + 4 1/6 + 5 5/6 ) + ? = 13
2/3
1/3
2/5
3/5
None
Option A
Solution:
(2 5/3 + 4 1/6+ 5 5/6 )+ x = 13
11/3+25/6+35/6 +x=13
x=(22+25+35-78)/6
=4/6=2/3.
8. (82 * 52)/200√2 = ?
6√2
8√2
8/√2
6/√2
None
Option C
Solution:
(82 * 52) / 200√2 = x
=(64*25) / 200√2
x=8/√2.
9. 172 – 212 + 132 = ?
17
22
34
28
None
Option A
Solution:
17 2 -212 +132=x
289 – 441 + 169=x
x=17.
10. 1.62/0.82 = [2.42/0.42] – ?
28
32
36
24
None
Option B
Solution:
1.62/0.82 = [2.42/0.42] – x
(1.6*1.6)/(0.8*0.8) = (2.4*2.4)/(0.4*0.4)-x
4 = 36– x
x=32.

## 7 Thoughts to “Quantitative Aptitude: Simplification Questions Set 50”

1. jaga

THANK U MAM

2. loku

10 ans 32

1. Premashanthi

Yes

1. lokesh

thnx

3. loku

3 ans is 56

1. Premashanthi

Yes we will change it.

4. Andrew Vishal

q.10 plz explain