We know that the original price is 160 and has increased to 248. To calculate the increase, divide. But first lets find the difference 248-160 =88 The percentage increase is 55%.
Ration of minutes of television to commercial is 35:7.8 3 hours and 50 minutes is 230 minutes 230:X 35:7.8 Multiply both sides by 6.6 X=51.5 minutes There is about 51.5 minutes of commercials
