Question

Phone calls to New York are charged at the rate of £2.90 for a 5-minute call. John’s call costs £7.86. How long (in minutes) was his call?

Answer 1

Explanation:

5 min = 2.90

xmin = 7.86

with cross multiplication;

xmin = 7.86*5min/2.90

x = 13.55=14.0

therefore x = 14min

so he will make of 14min long