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The ratio of two numbers is 7 : 10 and their difference is 105. The numbers are
A(245, 350)
B(70, 175)
C(200, 305)
D(185, 290)
Answer & Solution
Correct answer: A. (245, 350)
1. Let numbers be 7k and 10k for positive k.
2. Difference 10k - 7k = 3k = 105.
3. So k = 35.
4. Numbers = 7(35) = 245 and 10(35) = 350.
_Source: ICAI BoS Foundation Paper 3, Ch 1 Unit I 'Ratio', p.5 Ex.1(A) Q17_
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