The circumferences of two concentric circles are 176 m and 132 cm respectively. What is the difference between their radii?

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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...

If the height of a triangle is decreased by 40% and its base is increased by 40% what will be the effect on its area?

A. No change B. 8%decrease C. 16% Decrease D. 16%increases...

What part of a ditch 48m long 16.5 broad and 4m deep can be filled by the earth got by digging a cylindrical tunnel of diameter 4m and length 56m?

A. 1/9 B. 2/9 C. 7/9 D. 8/9...

The area of a square field 3136 sq m, if the length of cost of drawing barbed wire 3 m around the field at the rate of Rs.1.50 per meter. Two gates of 1 m width each are to be left for entrance. What is the total cost?

A. Rs.1014 B. Rs.1140 C. Rs.999 D. Rs.1085...

If the side of a square is increased by 25 % then how much percent does it’s area get increased:

A. 125 B. 156.25 C. 50 D. 56.25...