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Question : If P : Q : R = 4 : 7 : 9 and R : S = 2 : 5, then what is the value of P : S?

Option 1: 8 : 45

Option 2: 1 : 5

Option 3: 9 : 57

Option 4: 10 : 43


Team Careers360 17th Jan, 2024
Answer (1)
Team Careers360 21st Jan, 2024

Correct Answer: 8 : 45


Solution : Given, P : Q : R = 4 : 7 : 9 and R : S = 2 : 5
According to the question, (from the given ratios)
⇒ P : S = $\frac{P}{R}$ × $\frac{R}{S}$ = $\frac{4}{9}$ × $\frac{2}{5}$ = $\frac{8}{45}$ = 8 : 45
Hence, the correct answer is 8 : 45.

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