Question

two runners cover the same distance at the rate of 10km and 12km per hour respectively. find the distance covered when one takes 10 min more than other

Answer 1

Answer = 10 kilometres.



$x = 10 \times y + 1 \div 6 \\ x = 12 \times y \\ \\ 12 \times y \times 6 = 10 \times 6y + 1 \\ 72y = 60y + 10 \\ y = 5 \div 6 \\ \\ x = 12 \times 5 \div 6 \\ x = 10.$