a can run 256 metre in 28 seconds and b in 32 seconds . by what distance a beat b ?
"clearly , a beats b by 4 seconds now find out how much b will run in these 4 seconds speed of b = distance / time taken by b = 256 / 32 = 8 m / s distance covered by b in 4 seconds = speed ã — time = 8 ã — 4 = 32 metre i . e . , a beat b by 32 metre answer is a"
subtract(256, multiply(divide(256, 32), 28))