Area Problems The length of a room is 5.5 m and width is 3.75 m. Find the cost of paying the floor by slabs at the rate of Rs. 800 per sq.metre. Rs.17500 Rs.16500 Rs.18500 Rs.15500 Rs.17500 Rs.16500 Rs.18500 Rs.15500 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Area = 5.5 × 3.75 sq. metre. Cost for 1 sq. metre. = Rs. 800 Hence total cost = 5.5 × 3.75 × 800 = 5.5 × 3000 = Rs. 16500
Area Problems The inner circumference of a circular race track, 14 m wide, is 440 m. Find radius of the outer circle 84 33 44 22 84 33 44 22 ANSWER DOWNLOAD EXAMIANS APP
Area Problems The area of a rectangle is 460 square metres. If the length is 15% more than the breadth, what is the breadth of the rectangular field? 30 m 40 m 50 m 20 m 30 m 40 m 50 m 20 m ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let breadth = x meters. Then, Length = 115x / 100 meters Given that, X × (115X / 100) = 460 => X = 20
Area Problems A circular piece of thin wire is converted into a rhombus of side 11 cm. Find the diameter of the circular piece? 28 cm 7 cm 3.5 cm 14 cm 28 cm 7 cm 3.5 cm 14 cm ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Circular piece is 4 x 11 = 44 cm long, Then Circumference of circle is given by, 44 = pi x D, where D is the diameter D = 44 / pi Take pi = 22 / 7, then D = 44 / (22/7) = (44 x 7) / 22 D = 14 cm.
Area Problems The area of a circle of radius 5 is numerically what percent its circumference? 150% 250% 450% 350% 150% 250% 450% 350% ANSWER DOWNLOAD EXAMIANS APP
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