A starts a business, after 6 months B also join him with Rs.4500 and after 2 months of B’s joining C also join them with Rs.4500. If A gets approx. Rs 4900 out of total annual profit of Rs. 10,000 then find the approximate value of initial investment of A.

A person bought 8 quintals of rice for certain rupees. After a week, he sold 3 quintals of rice at 10% profit, 3 quintals of rice with neither profit nor loss and 2 quintals at 5% loss. In this transaction what is the profit? 

What will come in place of question mark(?) in the following number series?
11, 57, 149, 333, 701 (?)

A man rows at 5 km/h in still water. If the river is running at 1 km/h, it takes him 75 minutes to row to a place and back. How for is the place?

If P= 2² + 6² + 10² +14² +……..94² and Q=1² + 5² + 9² +……..81², then what is the value of P- Q ?

A crate of fruits contains one spoiled fruit for every 25 fruits. 60 % of the spoiled fruit were sold. IF the seller had sold 48 spoiled fruits, then the number of fruits in the crate were:

The compound interest accrued on an amount of Rs. 22,000 at the end of two years is Rs. 5,596.8. What would be the simple interest accrued on the same amount at the same rate in the same period ? 

At what rate percent per annum will a sum of Rs.5000 amount to Rs.6000 in 4 years?