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If the average age of Ram, Raman and Rohan is 23 years and the average age of Raman and Rohan is 27 years, then find Ram's age 5 years ago.
A motor boat can travel at a speed of 10 km per hour in still water, it goes 36 km downstream in the river and returns the same. It took him a total of 20 hours. What is the speed of river flow?
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The table below shows the number of cakes sold by six different bakeries in a town on five different days of a particular week.
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The total number of cakes sold by Bakery C on Saturday and Sunday, taken together, is approximate what percentage of the number of cakes sold by Bakery E on Tuesday?
What least number must be subtracted from 3401, so that the number is completely divisible by 11?
The area of the base of a cone is 144π cm2 while its slant height is 13 cm. This cone is remoulded to obtain a solid sphere. The radius of this sphere will be-
Pipe A can fill an empty tank in 6 h and pipe B in 8 h. If both the pipes are opened at the same time and pipe A is closed after 2 hours, then how long will pipe B alone take to fill the remaining tank?
A sum of ₹550 is to be repaid in 2 equal annual instalments. If the rate is 20% compounded annually, then the value of each instalment will be:
If the least common multiple of two numbers is 225 and the highest common factor is 5 then find the numbers when one of the numbers is 25?
The length, breadth, and height of a cuboid are 7 cm, 11 cm, and 13 cm respectively. What is the total surface area of the cuboid?
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