2026 · Q56
When A runs 5 km, B can run 2 km. Initially A was 750 m behind B and they were running in the same direction. How much distance, in metres, must A run to cross B, if they start at the same time?
general-mental-abilityquantitative-aptitude
- A500
- B750
- C1250
- D1500
Explanation
A's speed to B's speed is 5:2, so their relative speed is 3 units and A closes the 750 m gap at that relative rate. The distance A runs while closing the gap is (5/3) × 750 = 1250 m. Options 500, 750 and 1500 do not satisfy the speed ratio. Hence A must run 1250 metres to cross B.