Vinayak bought an item and sold it at a loss of 5%. If he had bought it for 10% less and sold it for Rs.390 more, he would have had a profit of 20%, find the cost price of item.

The difference of two numbers is 20 % of the larger number. If the smaller number is 20, the larger number is:

A man rides his vehicle at the rate of 36 km/hr but stops for 12 minutes, to change parts at the end of every 14^th  km,what will be the timed taken to cover a distance of 90 km?

If the differernce between the reciprocal of a positive proper fraction and fraction itself be$$17\over42$$, then the fraction is:

Denominator of a rational number exceeds its numerator by 8. If 17 is added to the numerator and 1 is subtracted from denominator we get the rational number 3/2 then the rational number is

A distance is covered by a cyclist at a certain speed. If a jogger covers half the distance in double the time, the ratio of the speed of the jogger to that of the cyclist is 

The daily wages of A & B respectively are Rs. 3.5 & Rs. 2.5. When A finishes a certain work alone, he gets a total wages of Rs. 63. When B does the same work alone, he gets a total wages Rs. 75. If both of them do it together what is the cost of the work?