A number increased by   gives 98 as result. The number is: 

Two people, Savita and Karan, get their sales commissions based on the number of items sold each month. Their total sales commission amounts to Rs. 56,100 in a particular month. If savita got her commission 12 % higher than Karan, how much commission did Karan earn? 

0.001 is equivalent to: 

The sum of square of two numbers is 68 and square of the difference of them is 36. Then multiplication value of the two is. 

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

By selling an article for Rs. 320, a man incurs a loss of 20%, what should be the selling price of an article to gain 30%?

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.