For the following questions answer them individually
A piece of work can be done by Ram and Shyam in 12 days, by Shyam and Hari in 15 days and by Hari and Ram in 20 days. Ram alone will complete the work in
3 men or 5 women can do a work in 12 days. How long will 6 men and 5 women take to finish the work?
A and B can do a job in 12 days, B and C in 15 days and C and A in 20 days. How long would A take to do that work ?
The difference of perimeter and diameter of a circle is X unit. The diameter of the circle is
The perimeter of the base of a right circular cylinder is ‘a’ unit. If the voltime of the cylinder is V cubic unit, then the height of the cylinder is
A sphere of diameter 6 cm is dropped in a right circular cylindrical vessel partly filled with water. The diameter of the cylindrical vessel is 12 cm. If the sphere is just completely submerged in water, then the rise of water level in the cylindrical vessel is
A shopkeeper marks his goods 20% above his cost price and gives 15% discount on the marked price. His gain percent is
A shopkeeper earns a profit of 12% on selling a book at 10% discount on printed price. The ratio of the cost price to printed price of the book is
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