Find the value of the letters in each of the following:
(i) PQ (ii) 2 L M
× 6 + L M 1
QQQ M 1 8

Solution:

(i) 4 × 6 = 24

P = 7

74 × 6 = 444

(ii) M + 1 = 8

M = 7

L + M = 1

L = 4

2 + L + 1 = 7

L = 4

✦ Try This: Find the value of the letters in each of the following: (i) aa × aa × aa = abba, (ii) 2LL+ LL2 = 5M5

(i) 11 × 11 × 11 = 1331; a = 1 and b = 3

(ii) L + 2 = 5

L = 3

M = L + L = 3 + 3 = 6

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 16

NCERT Exemplar Class 8 Maths Chapter 13 Problem 71

Find the value of the letters in each of the following: (i) PQ × 6 = QQQ, (ii) 2 L M + L M 1 = M 1 8

Summary:

The value of letters are (i) P = 7 ; Q = 4, (ii) M = 7; L = 4

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