The length of a rectangle is increased by 60 %. By what percent would the width have to be decreased to maintain the same area?

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The perimeter of a rectangle is 60m. If it’s length is twice its breadth then its area is__________?

A. 160m2 B. 180m2 C. 200m2 D. 220m2...

The water in a rectangular reservoir having a base 80m by 60m is 6.5m deep.In what time can the water be amplified by a pipe of which the cross section is a square of a side 20cm if the water runs through the pipe at the rate of 15km per hour?

A. 26hours B. 42hours C. 52hours D. 65hours...

The perimeter of one square is 48 cm and that of another is 20 cm. Find the perimeter and the diagonal of a square which is equal in area to these two combined?

A. 15√2 cm B. 13√2 cm C. 16√2 cm D. 17√2 cm...

A paper is in a square form whose one side is 20 cm. Two semi circles are drawn on its opposites as diameters. If these semi circles are cut down what is the area of the remaining paper?

A. (400 – 100π) cm2</sup B. (400 – 2π) cm2</sup C. (400 – 200π) cm2</sup D. 200π cm2</sup...

A rectangular carpet has an area of 120 sq.m and a perimeter of 46 m. The length of its diagonal is:_________?

A. 15 m B. 16 m C. 17 m D. 20 m...