# RD Sharma Class 9 Solutions Chapter 2 Exponents of Real Numbers MCQs

In this chapter, we provide RD Sharma Solutions for Chapter 2 Exponents of Real Numbers MCQs for English medium students, Which will very helpful for every student in their exams. Students can download the latest RD Sharma Solutions for Chapter 2 Exponents of Real Numbers MCQs Maths pdf, free RD Sharma Solutions for Chapter 2 Exponents of Real Numbers MCQs Maths book pdf download. Now you will get step by step solution to each question.

### RD Sharma Solutions for Class 9 Chapter 2 Exponents of Real Numbers MCQs Download PDF

Question 1.
The value of {2 – 3 (2 – 3)3}3 is
(a) 5
(b) 125
(c) 15
(d) -125
Solution:
{2 – 3 (2 – 3)3}3 = {2 – 3 (-1)3}3
= {2 – 3 x (-1)}3
= (2 + 3)3 = (5)3
= 125    (b)

Question 2.
The value of x – yx-y when x = 2 and y = -2 is
(a) 18
(b) -18
(c) 14
(d) -14
Solution:
x = 2, y = -2
x-yx-y = 2 – (-2)2 – (-2)
= 2 – (-2)2 + 2 = 2 – (-2)4
= 2 – (+16) = 2 – 16 = -14        (d)

Question 3.
The product of the square root of x with the cube root of x, is
(a) cube root of the square root of x
(b) sixth root of the fifth power of x
(c) fifth root of the sixth power of x
(d) sixth root of x
Solution: Question 4.
The seventh root of x divided by the eighth root of x is Solution: Question 5.
The square root of 64 divided by the cube root of 64 is
(a) 64
(b) 2
(c) 12
(d) 6423
Solution: Question 6.
Which of the following is (are) not equal to Solution: Question 7.
When simplified (x1 + y1)1 is equal to Solution:  Question 8.
If 8x+1 = 64, what is the value of 3 2x +1?
(a) 1
(b) 3
(c) 9
(d) 27
Solution: Question 9.
If (23)2 = 4x then   3x =
(a) 3
(b) 6
(c) 9
(d) 27
Solution: Question 10.
If x-2= 64, then x13 + x°=
(a) 2
(b) 3
(c) 32
(c) 23
Solution: Question 11.
When simplified ( –127)−23
(a) 9
(b) -9
(c) 19
(d) –19
Solution: Question 12.
Which one of the following is not equal to Solution:  Question 13.
Which one of the following is not equal to Solution:  Question 14.
If a, b, c are positive real numbers, then Solution: Question 15. Solution: Question 16. Solution: Question 17. Solution:  Question 18. Solution: Question 19. Solution: Question 20.  Solution: Question 21.
The value of {(23 + 22)2/3+ (150 -29)1/2}2  is
(a) 196
(b) 289
(c) 324
(d) 400
Solution:
{(23 + 22)2/3 + (150 – 29)1/2}2
= [(23×4)23  +(150 – 29)12 ]2
= [(27)23 + (121)12 ]2
= [(33)3 +(112)12]2 = (9 + 11)2
= (20)2 = 400  (d)

Question 22.
(256)0.16x (256)0.09
(a) 4
(b) 16
(c) 64
(d) 256.25
Solution: Question 23.
If 102y = 25, then 10-y equals Solution: Question 24.
If 9+ 2 = 240 + 9X. then x =
(a) 0.5
(b) 0.2
(c) 0.4
(d) 0.1
Solution: Question 25.
If x is a positive real number and x2 = 2, then x3 =
(a) 2–√
(b) 22–√
(c) 32–√
(d) 4
Solution: Question 26. Solution: Question 27. Solution:  Question 28. Solution: Question 29. Solution:  Question 30. Solution: Question 31. Solution:  Question 32. Solution: Question 33.
If (16)2x + 3 = (64)x + 3 , then 42x – 2  =
(a) 64
(b) 256
(c) 32
(d) 512
Solution: Question 34.  Solution: Question 35.  Solution: Question 36. Solution:  Question 37. Solution: Question 38. Solution: Question 39. Solution: Question 40. Solution: All Chapter RD Sharma Solutions For Class 9 Maths

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All Subject NCERT Exemplar Problems Solutions For Class 9

All Subject NCERT Solutions For Class 9

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