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Q.

The present ages of a brother and sister in the ratio of 2 : 3. Ten years hence, the ratio will be 3 : 4. Their present ages are,

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a

30, 40

b

24, 36

c

20, 30

d

24, 32

answer is C.

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Detailed Solution

2x+103x+10=348x+40=9x+30x=10

Hence, ages will be 20, 30 years.

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