Circumference if the ground = 2πr = 2 × 22/7 × 420 = 2640 m So, distance = 2640 m Time taken by bus A to cover 2 rounds of a ground = (2640/12) × 2 = 440 Time taken by bus B to cover 2 rounds of a ground = (2640/20) × 2 = 264 Required difference = 440 – 264 = 176
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A and B together can complete a piece of work in 36 days while A and C together can complete the same work in 39 days. If A, B, and C together can compl...
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