Quantitative Aptitude: Simplification Quiz for IBPS RRB, PO, CLERK and other Exams Set-2

Q.1 6432.50+(11²)-x² = 217.50-64

A. 54

B. 108

C. 64

D. 80
E. 98

Q.2 4/5 of 6/7 of 2/3 of 4410 = ?×4

A. 450

B. 504
C. 420
D. 350
E. 500

Q.3 √256×?²×5÷8÷2+215 = 1340

A. 225

B. 16

C. -15 

D. 5

E. 25
Q.4 2√6×3√3×√8÷9×54 = ?

A. 432

B. 402

C. 312

D. 385

E. None of these.

Q.5 85×15÷34-24+103 = ?+8.5

A. 85

B. 105

C. 98

D. 115

E. 108

Answers:

Ans.1 D.

Ans.2 B.

Ans.3 C.

Ans.4 A.

Ans.5 E.

Explanation:

1. 6432.50+(11²)-x² = 217.50-64

6432.50+121-217.50+64 = x²

6617.5-217.5 = x²

x² = 6400

x = 80

2. 4/5 of 6/7 of 2/3 of 4410 = ?×4

4/5 × 6/7 × 2/3 × 4410 = ?×4

?×4 = 2016

? = 2016/4

? = 504

3. √256×?²×5÷8÷2+215 = 1340

16×?²×5÷8÷2+215 = 1340

?²×5+215 = 1340

?²×5 = 1340-215

?² = 1125/5

?² = 225

? = ±15

4. 2√6×3√3×√8÷9×54 = ?

2√6×3√3×2√2÷9×54 = ?

2√6×6√6÷9×54 = ?

2×6×6×6 = ?

? = 432

5. 85×15÷34-24+103 = ?+8.5

1275÷34-24+103 = ?+8.5

37.5+79-8.5 = ?

? = 116.5-8.5

? = 108