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Let the total work be = 1 One day work done by Harish and Bimal = 1/20 Work done by Harish and Bimal in 15 days = 1/20 × 15 = 3/4 ⇒ Remaining work = 1 - 3/4 = 1/4 Harish did remaining work in 10 days alone. ⇒ One day work done by Harish = 1/4 ×1/10 = 1/40 ∴ Time taken by Harish to do the entire task alone = 1 ×40 = 40 days
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Speed of a car and a bus is 25 km/h and 15 km/h, respectively. If the time taken by the car to cover a distance of ‘8x’ km is 1 hour less than time ...
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The speeds of Vishank and Karun are 60 km/hr and 90 km/hr. Initially, Karun is at a point P and Vishank is at a place Q. The distance between P and Q is...
Travelling at a speed of 54 km/h, Chaman reaches a place 3 minutes early. If he had travelled at a speed of 48 km/h, he would have been 1 minute late. W...
