In covering a certain distance, the speeds of A and B are in the ratio

1.	In covering a certain distance, the speeds of A and B are in the ratio 3 : 4. A takes 30 min. more than B to reach the destination. The time taken by A to reach the destination is :
Answer» 2 HOURS Ratio of speeds = 3 : 4 Ratio of times taken = 4 : 3. Suppose A takes 4X hours and B takes 3X hours to reach the destination. Then, 4X - 3X = 30/60 X = 1/2. Time taken by A = 4X hours = 4 x 1/2 = 2 hours.

In covering a certain distance, the speeds of A and B are in the ratio 3 : 4. A takes 30 min. more than B to reach the destination. The time taken by A to reach the destination is :

Answer»

Ratio of speeds = 3 : 4
Ratio of times taken = 4 : 3.
Suppose A takes 4X hours and B takes 3X hours to reach the destination. Then, 4X - 3X = 30/60
X = 1/2.
Time taken by A = 4X hours = 4 x 1/2 = 2 hours.

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In covering a certain distance, the speeds of A and B are in the ratio 3 : 4. A takes 30 min. more than B to reach the destination. The time taken by A to reach the destination is :

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