Question

Bob covers 25 kilometres in half an hour. How much distance will he cover in 1 hour if he sails at the same speed?

Answer 1

1 hour = 60 mins
So,
$\frac{1}{2}$ hour = 60 ÷ 2 = 30 mins

Since Bob covers 25 km in half an hour, he will cover double the distance in 1 hour.
25 km + 25 km = 50 km

Thus, if Bob sails at the same speed, he will cover 50 km in 1 hour.