- Option : B
- Explanation : First statement is not sufficient to answer the question because the speed of the second half of the distance is not given here but statement II can answer as information to calculate average speed = distance/time is given in the statement.

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- Option : B
- Explanation : Time taken by B to reach destination = 350/50 =
7 hours

If A has a head start of 1 hour then the distance travelled by A when B reaches the destination

= 40 × (7 + 1) = 320 km

Hence, A has to still travel 30 km while B has reached the destination.

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- Option : A
- Explanation : The present total age of husband and wife = 2 ×
(22 + 5) = 54 years

Total age of family (including child) = 54 + 3 = 57 years

Average age of family = 57/3 = 19 years

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- Option : B
- Explanation : Monthly saving = 3600/12 = Rs 300

Hence, monthly expenditure = income − saving = 1400 – 300 = Rs 1100

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