SSC CPO SI and ASI Model Paper 8

Question : 114 of 200

Marks: +1, -0

Length of the floor of a rectangular auditorium is 6 meters more than the radius of a circle with a circumference of 572m. The perimeter of the floor of the rectangular auditorium is 356m. What will be the cost of flooring the auditorium if the cost of flooring is₹12/

m^2?

₹87954
₹91236
₹94284
₹75490

Validate

Solution:

(3) Let r be the radius of circle.

2 × 22/7× r = 572

⇒ r = 91m
Length of floor = 91 + 6 = 97m
Let B be the breadth of floorNow, 2(97 + B) = 356
⇒ B = 81m
Area of floor

= 97 × 81 = 7857m^2

Cost of flooring = 7857 × 12= ₹94284

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