In a 500m race, the ratio of the speeds of two contestants A and B is 3 : 4. A has s start of 140 m. Then, A wins by :

In a 500m race, the ratio of the speeds of two contestants A and B is 3 : 4. A has s start of 140 m. Then, A wins by : Correct Answer 10m

Hints: Win post এ যেতে A কে যেতে হবে (500 - 140) বা 360meter যখন A যায় 3 meter, তখন B যায় 4 meter A যায় 360 meter তখন B যায় (4/3) × 360 = 480 meter তাই তখন A win post এ পৌছে যায়, B যায় 480 meter এবং 20 meter বাকি থাকে।

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