The radius of a cylinder is increased by 50%. By what percentage the height be increased or decreased to get an overall volume increase of 75%.
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RBI Assistant Prelims 2016
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Chapters. Profit and Loss
The cost of 14 kgs of rice is 672, the cost of 12 kgs of wheat is 432 and the cost of 18 kgs of sugar is 504. What is the total cost of 20 kgs of rice, 15 kgs of wheat and 16 kgs of sugar?
Chapters. Boats and Stream
A boat running downstream cover a distance of 20km in 2 hours. While coming back, the boat takes 4 hours to cover the same distance. What is the speed of the boat in still water (in kmph)?
Chapters. Problems on Ages
At present, Aruna's age is 1.5 times the age of Pujan and twice the age of Sony. After six years, Aruna will be 1.4 times the age of Pujan and Sony will be 0.8 times the age of Pujan then, what is the present age of Sony?
Chapters. Number System
The strength of a university is 4500. The no. of boys and girls is increased by 12% and 17% respectively. As a result, the strength of the university becomes 5125. Find the no. of girls in the university
Chapters. Profit and Loss
If the loss on a product is 30% of the selling price, then what is the cost price to loss ratio?
Chapters. Profit and Loss
Mohit starts a business with Rs. 8,500 and after 12 months Nishant joins Mohit as his partner. After 3 years the profit is divided in the ratio of 15 : 12. What is Nishant’s contribution in the capital?
Chapters. Probability
There are 4 white, 6 black and 2 red balls in a bucket, 3 balls are taken out randomly. What is the probability that all three balls are of different colours.
Chapters. Simple Interest
Prachi deposits an amount of ₹ 78,000 to obtain a simple interest at the rate of 13 p.c.p.a. for 3 years. What total amount will Prachi get at the end of 3 years?
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