A and B run a 1560 m race ending in a dead heat. At first, the speed of A and B are in the ratio of 7 : 5.B then quickens his pace and for the remainder of the race runs 40 percent faster than A. How many metres A run before B quickens his pace?

Options
- 650
- 780
- 910
- 900
- None of these

CORRECT ANSWER : 910

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Maths

Wow

Janak baduwal 05-20-2023 04:15 AM

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A and B run a 1560 m race ending in a dead heat. At first, the speed of A and B are in the ratio of 7 : 5.B then quickens his pace and for the remainder of the race runs 40 percent faster than A. How many metres A run before B quickens his pace?

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