Area Problems The Number of rounds that a wheel of diameter 7/11 m will make in going 4 km, is? 1700 2000 1500 1000 1700 2000 1500 1000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of round = total distance / circumference of wheel.= (4 x 1000) / ?d= (4 x 1000) / ( 22/7 x 7/11) = 2000
Area Problems Area of a four walls a room is 168 Sq. meters . The breadth and height of a room are 8 meters and 6 meters respectively . The length of the room is? 12 meters 14 meters 6 meters 3.5 meters 12 meters 14 meters 6 meters 3.5 meters ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Area of a four walls = 2(l + 8) x 6 = 168m2? (l + 8) = 14? l = 14-8= 6 meters
Area Problems A park of 10 meters long and 8 meters broad. What is the length of the longest pole that can be placed in the park? 12.8 metres 10 metres 13.4 metres 18 metres 12.8 metres 10 metres 13.4 metres 18 metres ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Length of the longest pole = ? [(10)2 + (8)2] m = ? 164 m = 12.8 m
Area Problems The area of a circle of radius 5 is numerically what percent its circumference? 250% 350% 150% 450% 250% 350% 150% 450% ANSWER DOWNLOAD EXAMIANS APP
Area Problems The area of a circular field is 13.86 hectares . The cost of fencing it at the rate of 20 paisa per meter is? Rs. 277.20 Rs. 264 Rs. 324 Rs. 198 Rs. 277.20 Rs. 264 Rs. 324 Rs. 198 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? 22/7 x r2 = 13.86 x 10000? r2 = (13.86 x 10000 x 7) / 22? r = 210 m ? Circumference = [2 x (22/7) x 210 ] m = 1320 m Cost of fencing = Rs. (1320 x 20)/100= Rs . 264
Area Problems The area of an equilateral triangle whose side is 8 cms is? 64 cm2 21.3 cm2 16?3 cm2 4?3 cm2 64 cm2 21.3 cm2 16?3 cm2 4?3 cm2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Req. Area = ?3/4 x a2 = ?3/4 x 82 cm2= 16?3 cm2
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