Question
A hemisphere has a radius of 10 cm. What is the total
surface area of the hemisphere?Solution
The total surface area of a hemisphere = 3πr². Given, r = 10 cm. Total surface area = 3π * (10)² = 3π * 100 = 300π square centimeters.
In a mixture of milk & water, 40 litres water is mixed due to which ratio changes from 3 : 4 to 1 : 4. Find initial quantity of mixture. (in litres)
A scored 50% marks and failed by 60 marks whereas B scored 80% marks, which was 90 more than the passing marks of the examination. Find the total marks ...
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In a mixture of liquids P, Q, and R, the ratio of the quantity of liquid P to liquid Q is 3:2 respectively. If the amount of liquid R is 21 ml and it co...
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A vessel is completely filled with milk. If 43% of the milk is replaced with water then only 171 ml of milk will be left in the vessel. What is the tota...
A vessel initially holds 150 liters of pure milk. First, 30 liters of milk is taken out and replaced with an equal amount of water. The process is then ...
