Question

Which of the following is correct?
(a) 3:4 = 15:24
(b) 12:24 = 6:12
(c) 7:3 = 14:3
(d) 5:10 = 9:20

Answer 1

$\sf{\huge{\underline{\red{Answer :-}}}}$

➝ Option.(b) 12:24 = 6:12

$\sf{\huge{\underline{\green{Solution :-}}}}$

(a) 3:4 = 15:24

➝ $\dfrac{3}{4} = \dfrac{15}{24}$

➝ 3 × 24 = 15 × 4

➝ 72 ≠ 70

(b) 12:24 = 6:12

➝ $\dfrac{12}{24} = \dfrac{6}{12}$

➝ 12 × 12 = 24 × 6

➝ 144 = 144

(c) 7:3 = 14:3

➝ $\dfrac{7}{3} = \dfrac{14}{3}$

➝ 7 × 3 = 14 × 3

➝ 21 ≠ 42

(d) 5:10 = 9:20

➝ $\dfrac{5}{10} = \dfrac{9}{20}$

➝ 5 × 20 = 10 × 9

➝ 100 ≠ 90

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