Question
Find the time taken by a pipe, which releases 121.5
m3 of water in a minute to fill an empty cylindrical tank of radius 9 m and height 10 m. [Take π = 3]Solution
Volume of tank = 3 × 92 × 10 = 2430 m3 Required time taken = 2430/121.5 = 20 minutes
Find the number of triangles in the given figure:
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