Math, asked by rohitrajput07021998, 3 months ago

9) If a : b = 5:7, then the ratio (5a + 7b): (3a + 4b) is
A) 43: 74
B) 76:43
C) 74:43
D) 43: 76

Answers

Answered by chemistrywala

3

Correct option is (C)

a = 5b/7

25b/7 + 7b : 15b/7 + 4b == 74:43

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