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Radius of the sphere = 30 ÷ 2 = 15 cm Volume of the sphere = 4/3 X 22/7 X 15 X 15 X 15 cm3 Let the height of the cone be 'h' cm. Now, volume of the sphere = volume of the cone So, 4/3 X (22/7) X 15 X 15 X 15 = 1/3 X 22/7 X (15/20 X (15/2) X h Or, 'h' = 4 X 2 X 2 X 15 So, 'h' = 240 Required height = 240 cm
A person saves 20% of his monthly earnings. If his monthly earnings increase by 70%, then by how much percent should he increase his monthly expenditure...
If y exceeds x by 15 % then x is less than y by what percent?
A gave 60% of amount to B. B gave 20% of amount received from A to C. If amount received by C from B is Rs.192, then find the amount received by B from A.
In a class of 60 students and 15 teachers, each student got gifts that were 40% of total number of l7students and each teacher got gifts that were 30% o...
In a competition between two candidates, the victor secured 60% of the overall legitimate votes. Out of a total of 1800 votes cast, 5% were deemed inval...
When income of a man increases by Rs. 6000 then tax rate reduces from 18% to 15%. While in both the situation 25% income is tax free. Find his initial i...
Archers 'A' and 'B' take aim at a target. if the probability of 'A' hitting the target is 90% and of 'B' missing the target is 90% what is the probablit...
A gets 36% of the full marks in an exam and fails by 90 marks. B gets 39% of the full marks in the same exam and he also fails by 75 marks. What is the ...
In a village 80% of votes were cast in an election. A and B were the contestants. A won by 800 votes. If B had got 20% more votes, there would have been...
A person spends 25% of his income on house rent, 20% of the remaining money spends on food, and 15% of theremaining money on travelling and saves Rs. 30...
