1.

Mr. Ghosh Babu leaves his house daily at a particular time to go to his office. He reaches office 10minutes late when he travels at 20 kmph and 5 minutes early when he travels at 30 kmph. At what speed should he travel to reach office on time?

Answer» Mr. Ghosh Babu leaves his house daily at a particular time to go to his office. He reaches office 10minutes late when he travels at 20 kmph and 5 minutes early when he travels at 30 kmph. At what speed should he travel to reach office on time?


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