Question
The ratio of age of ‘B’ after 7 years from now and
age of ‘C’ 6 years ago from now is 7:4, respectively. The present age of ‘C’ is 30% of the present age of ‘A’. If present age of ‘A’ is 40 years then find the present age of ‘B’.Solution
Present age of ‘C’ = 0.3 × 40 = 12 years 6 years ago from now, age of ‘C’ = 12 – 4 = 8 years 7 years hence from now, age of ‘B’ = 8 × (7/4) = 14 years Present age of ‘B’ = 14 – 7 = 7 years
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2Â Â Â Â Â 3Â Â Â Â Â Â 5 Â Â Â Â Â Â 9Â Â Â Â Â Â ? Â Â Â Â Â Â 33
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In each of the following number series, one term is missing. Find the missing term.
4, 9, 16, 25, 36, ?
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-5, -2, ?, 10, 19, 30 What should come in place of (?) question mark in the following number series.
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12, 24, 46, 78, 120, ?
