#### The diameter of a garden roller is 1.4 m and it is 2 m long. How much area it will cover in 5 revolutions?

**Solution:**

#### The capacity of an open cylindrical tank is 2079 m^{3} and the diameter of its base is 21m. Find the cost of plastering its inner surface at ₹40 per square metre.

**Solution:**

**More Solutions:**

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