# ML Aggarwal Exponents and Powers MCQs Class 7 ICSE Maths Solutions

ML Aggarwal Exponents and Powers MCQs Class 7 ICSE Maths Solutions. We Provide Step by Step Answer of  MCQs Questions for Exponents and Powers as council prescribe guideline for upcoming board exam. Visit official Website CISCE for detail information about ICSE Board Class-7.

## ML Aggarwal Exponents and Powers MCQs Class 7 Maths Solutions

 Board ICSE Publications Avichal Publishig Company (APC) Subject Maths Class 7th Chapter-4 Exponents and Powers Writer ML Aggarwal Book Name Understanding Topics Solution of MCQs Edition 2023-2024

### Exponents and Powers MCQs

ML Aggarwal Class 7 ICSE Maths Solutions

Page-98

#### Question 1. Fill in the blanks:

(i) In the expression (-5)9, exponent = ……… and base = ………..
(ii) If the base is −3/4 and exponent is 5, then exponential form is ………
(iii) The expression (x2y5)3 in the simplest form is ………
(iv) If (100)0 = 10n, then the value of n is ……..

(viii) 35070000 = 3.507 × 10….
(ix) If (-2)n = -128, then n = ……..

(i) In the expression (-5)9, exponent = 9 and base = -5
(ii) If the base is −3/4 and exponent is 5, then exponential form is (-3/4)5
(iii) The expression (x2y5)3 in the simplest form is (x2)3×(y5)3 = x6y15
(iv) If (100)0 = 10n, then the value of n is 0

(viii) 35070000 = 3.507 × 107
(ix) If (-2)n = -128, then n = (-2)7

#### Question 2. State whether the following statements are true (T) or false (F):

(i) If a is a rational number then am × an = am×n

(ii) 23 × 32 = 65.
(iii) The value of (-2)-3 is −1/8.

(iv) The value of the expression 29 × 291 – 219 × 281 is 1.
(v) 56 ÷ (-2)6 = −5/2
(vi) 50 × 30 = 80

(vii) 23/ 7<(2/7)3

(viii) (10 + 10)4 = 104 + 104.
(ix) x0 × x0 = x0 ÷ x0, where x is a non-zero rational number.
(x) 49 is greater than 163.
(xi) xm + xm = x2m, where x is a non-zero rational number and m is a positive integer.
(xii) (4/3)5×(5/7)5=(.4⁄3+.5⁄7)5

(i) If a is a rational number then am × an = am×n  False

(ii) 23 × 32 = 65. False
(iii) The value of (-2)-3 is −1/8. True

(iv) The value of the expression 29 × 291 – 219 × 281 is 1. False
(v) 56 ÷ (-2)6 = −5/2 False
(vi) 50 × 30 = 80 True

(vii) 23/ 7<(2/7)3 False

(viii) (10 + 10)4 = 104 + 104. False
(ix) x0 × x0 = x0 ÷ x0, where x is a non-zero rational number.  True
(x) 49 is greater than 163. True
(xi) xm + xm = x2m, where x is a non-zero rational number and m is a positive integer. False
(xii) (4/3)5×(5/7)5=(.4⁄3+.5⁄7)5 False

### Exponents and Powers MCQs

ML Aggarwal Class 7 ICSE Maths Solutions

Page-99

Choose the correct answer from the given four options (3 to 12)

(a) a3b2
(b) a2b3
(c) (ab)3
(d) a6b6

(c) (ab)3

(a) 65
(b) (-6)6
(c) 72
(d) -72

(d) -72

(a) p3qr
(b) pq3r
(c) pqr3
(d) p3q3r3

(d) p3q3r3

(a) 5-5
(b) 55
(c) 550
(d) 595

(b) 55

#### Question 9. The law (𝑎/𝑏)n=an /bn does not hold when

(a) a = 3, b = 2
(b) a = -2, b = 3
(c) n = 0
(d) b = 0

(d) b = 0

(a) 1/30
(b) −1/30
(c) 30
(d) -30

(a) 1/30

#### Question- 13. The value of (6-1 – 8-1)-1 is

(a) −1/2
(b) -2
(c) 1/24
(d) 24

(d) 24

Exponents and Powers MCQs

### ML Aggarwal Class 7 ICSE Maths Solutions

Page-100

#### Question -15. If 23 + 13 = 3x, then the value of x is

(a) 0
(b) 1
(c) 2
(d) 3

(c)  x = 2

(ML Aggarwal Exponents and Powers MCQs Class 7 ICSE Maths Solutions)

(a) 7.5165 × 102
(b) 75.165 × 101
(c) 7.5165 × 104
(d) 7.51 × 102

(a) 7.5165 × 102

#### Question -17. The usual form of 5.658 × 105 is

(a) 5658
(b) 56580
(c) 565800
(d) 5658000

5.658 × 105  = 565800 (c)

(a) 26.57 × 104
(b) 2.657 × 104
(c) 265.7 × 103
(d) 0.2657 × 106