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Arithmetic aptitude :: Area :: General Questions




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6.

A circular ground whose diameter is 35 metres, has a 1.4 m broad garden around it. What is the area of the garden in square metres ?


A) 160.16

B) 176.16

C) 196.16

D) Data inadequate

E) None of these



7.

The area of a right-angled triangle is 40 times its base. What is its height ?


A) 45 cm

B) 60 cm

C) 80 cm

D) Data inadequate

E) None of these



8.

The ratio of height of a room to its semi-pcrimeter is 2 : 5. It costs Rs. 260 to paper the walls of the room with paper 50 cm wide at Rs. 2 per metre allowing an area of 15 sq. m for doors and windows. The height of the room is :


A) 2.6 m

B) 3.9 m

C) 4 m

D) 4.2 m



9.

The dimensions of a room are 10 m x 7 m x 5 m. There are 2 doors and 3 windows in the roorrf. The dimensions of the doors are 1 m x 3 m. One window is of size 2 m x 1.5 m and the other two windows are of size 1 m x 1.5 m. The cost of painting the walls at Rs. 3 per m^2 is :


A) Rs. 474

B) Rs. 578.50

C) Rs. 684

D) Rs. 894



10.

The difference of the areas of two squared drawn on two line segments of different lengths is 32 sq. cm. Find the length of the greater line segment if one is longer than the other by 2 cm.


A) 7cm

B) 9cm

C) 11cm

D) 16cm



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