Test: Surds And Indices- 2

10 Questions MCQ Test Quantitative Aptitude for GMAT | Test: Surds And Indices- 2

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Attempt Test: Surds And Indices- 2 | 10 questions in 20 minutes | Mock test for Quant preparation | Free important questions MCQ to study Quantitative Aptitude for GMAT for Quant Exam | Download free PDF with solutions
QUESTION: 1

Solution:

QUESTION: 2
Solution:

QUESTION: 3

If 7(x - y) = 343 and 7(x + y) = 16807, what is the value of x?

Solution:

QUESTION: 4

(0.04)-2.5 = ?

Solution:

QUESTION: 5

(6)6.5 × (36)4.5 ÷ (216)4.5 = (6)?

Solution:

(6)6.5 × (36)4.5 ÷ (216)4.5

= (6)6.5 × [(6)2]4.5 ÷ [(6)3]4.5

= (6)6.5 × (6)9 ÷ (6)13.5

= (6)(6.5 + 9 - 13.5)

= (6)2

QUESTION: 6

Solution:

QUESTION: 7

Solution:

QUESTION: 8

if 6m = 46656, What is the value of 6m-2

Solution:

Solution 1

Solution 2

QUESTION: 9

10222 ÷ 10220 = ?

Solution:

QUESTION: 10

If m and n are whole numbers and mn = 196, what is the value of (m - 3)(n+1) ?

Solution:

mn = 196

We know that 142 = 196

Hence we can take m = 14 and n = 2

(m - 3)(n+1) = (14 - 3)(2+1) = 113 = 1331

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