Question discussion

If 3ˣ⁄₇ × 2ʸ⁄₅ = 10 (mixed fractions, 3 and x/7 and 2 and y/5), then values of x and y would be

Correct answer: B

Explanation

(21 + x)/7 × (10 + y)/5 = 10 gives (21 + x)(10 + y) = 350. For x = 4 and y = 4, 25 × 14 = 350.

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