Question

Find the value of x in 3 : x : : 10 : 12

Answer 1

Given that,

• 3 : x :: 10 : 12 [ we know product of means = product of extremes ]

• a = 3, b = x, c = 10, d = 12

⇒ ∴ bc = ad [product of means = product of extremes]

⇒ x×10 = 3×12

⇒ x = 3×12/10

⇒ x = 3.6

∴ The value of x is 3.6.

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