Quantitative Aptitude: Simplification Questions Set 5

Option A
Solution:
6480

Option B
Solution:
(x+1)/x = 2
=> x =1
=>(x⁴ + 1 + 7x²) / x²[x³ +(1/x)³ ] = 9 / 2

Option A
Solution:
1199.91 ≈ 1200
= 15 % of (3/4) of (8/9) of 1200
= 120

Option E
Solution:
49.89   50
1999.91   2000
28.98  29
3499.99 ≈3500
50 %  of 2000  – 29% of 3500 = 1000 – 1015 = -15

Option C
Solution:
870.22

Option E
Solution:
(15³)⁶  ÷  (15)¹⁰ ÷ (15²)⁷  = (15)^x-6
=> (15)^18-10-14   = (15)^x-6
=> -6 = x – 6
=> x = 0

Option C
Solution:
10569119

Option A
Solution:
2912

Option D
Solution:
11179

Option D
Solution:
3087