exam Maths Puzzle Numerical Ability

when I divide, do I need to change the signs to multiplication?

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exam Other Question

1. the perimeter of a rectangular carpet is 70 feet. the width is three-fourths the lenght. find the width.
2. the lenght of a rectangular room is six times as long as the width. A car rental company charges $25 a day plus $.10 a mile. If I rented a car for 3 days and was charged $105. For how many miles did I get charge? If he actually drove the car 250 mi