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

These Solutions are part of RD Sharma Class 9 Solutions. Here we have given RD Sharma Class 9 Solutions Chapter 2 Exponents of Real Numbers MCQS

**Other Exercises**

- RD Sharma Class 9 Solutions Chapter 2 Exponents of Real Numbers Ex 2.1
- RD Sharma Class 9 Solutions Chapter 2 Exponents of Real Numbers Ex 2.2
- RD Sharma Class 9 Solutions Chapter 2 Exponents of Real Numbers VSAQS
- RD Sharma Class 9 Solutions Chapter 2 Exponents of Real Numbers MCQS

**Mark the correct alternative in each of the following:
**

**Question 1.**

**The value of {2 – 3 (2 – 3)**

^{3}}^{3}is**(a) 5**

**(b) 125**

**(c)**

**(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 – y**

^{x-y}when x = 2 and y = -2 is**(a) 18**

**(b) -18**

**(c) 14**

**(d) -14**

**Solution:**

x = 2, y = -2

x-y

^{x-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)**

**(d) 64**

^{ }**Solution:**

**Question 6.
**

**Which of the following is (are) not equal to**

**Solution:**

Question 7.

**When simplified (x ^{–}^{1} + y^{–}^{1})^{–}^{1} is equal to**

**Solution:**

**Question 8.
**

**If 8**

(a) 1

^{x}^{+1}= 64, what is the value of 3^{2x}^{ +1}?(a) 1

**(b) 3**

**(c) 9**

**(d) 27**

**Solution:**

**Question 9.
**

**If (2**

^{3})^{2}= 4^{x}then 3^{x}=**(a) 3**

**(b) 6**

**(c) 9**

**(d) 27**

**Solution:**

Question 10.

**If x ^{-2}= 64, then x^{} + x°=**

**(a) 2**

**(b) 3**

**(c)**

(c)

(c)

**Solution:**

**Question 11.
**

**When simplified ( –)**

(a) 9

(b) -9

(c)

(d) –

^{}(a) 9

(b) -9

(c)

(d) –

**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 + 2**

^{2})^{2/3}+ (150 -29)^{1/2}}^{2}is**(a) 196**

**(b) 289**

**(c) 324**

**(d) 400**

**Solution:**

{(23 + 2

^{2})

^{2/}

^{3}+ (150 – 29)

^{1/2}}

^{2 }= [(23×4)

**+(150 – 29)**

^{}**]**

^{}^{2 }= [(27)

**+ (121)**

^{}**]**

^{}^{2 }= [(3

^{3})

^{3}+(11

^{2})

**]**

^{}^{2}= (9 + 11)

^{2 }= (20)

^{2}= 400

**(d)**

**Question 22.
**

**(256)**

^{0.16}x (256)^{0.09 }(a) 4**(b) 16**

**(c) 64**

**(d) 256.25**

**Solution:**

**Question 23.
**

**If 10**

^{2y}= 25, then 10^{-y}equals**Solution:**

Question 24.

**If 9 ^{X }^{+} ^{2} = 240 + 9^{X}. 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 x

^{2}= 2, then x

^{3}=

(a)

(b) 2

(c) 3

(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 4^{2x – 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:**

Hope given RD Sharma Class 9 Solutions Chapter 2 Exponents of Real Numbers MCQS are helpful to complete your math homework.

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