If 5 A × A = 399, then the value of A is
(a) 3
(b) 6
(c) 7
(d) 9
Solution:
Given,
5 A × A = 399
If A = 7 we have,
5 7 × 7 = 399
The value of A = 7
The correct choice is (c )
✦ Try This: If 5 B × B = 531, then the value of A is (a) 3, (b) 6, (c) 7, (d) 9
5 B × B = 531
5 9 × 9 = 531
B = 9
The correct answer is (d)
☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 16
NCERT Exemplar Class 8 Maths Chapter 13 Problem 15
If 5 A × A = 399, then the value of A is (a) 3, (b) 6, (c) 7, (d) 9
Summary:
If 5 A × A = 399, then the value of A is 7
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