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Given- Diameter = 8cm R = 4cm, r = 4-1/2=7/2 cm Volume of the ball = 4 π /3[R3-r3] = (4/3) ×22/7 [64-343/8] = 88/21 [(512-343)/8] = (88/21) ×169/8 =1859/21 =88.52cm 3
In a colony, there are 90 APL families and 46 BPL families. Each APL and BPL family got blankets equal to 25% and 75%, respectively of total number of f...
A person gets an increment of x% on his monthly salary. Before increment, he use to spend 3x/2% of his income and saves the rest. His new expenditure is...
A person spent 34% of his monthly income on food and 33% of the remaining on rent. If amount spent on rent is Rs 1089, then find the amount spent on food.
Akshay, Vishal and Dipak purchased 2, 20 and 50 notebooks for a total of Rs 16, Rs 140 and Rs 400 respectively from a stationery shop. In his transactio...
In an election between two candidates, winner got 30% of total valid votes. If total number of votes cast were 1500 out of which 6% were invalid, then f...
A scored 40% marks and failed by 40 marks whereas B scored 70% marks, which was 80 more than the passing marks of the examination. Find the total marks ...
The marks scored by a boy in three subjects are in the ratio 3 : 5 : 7. Boy scored an overall aggregate of 70% in the exam. If the maximum marks in each...
In a two digit positive number, the digit in the unit’s place is equal to the square of the digit in ten’s place, and the difference between...
In a company, there are 450 employees. Out of these, 270 are men. If 60% of the women in the company are in the marketing department, and a total 137 me...
