Ramesh scored 73 marks in subject A . He scored 56% marks in subject B and X marks in subject C. maximum marks in each subject were 150. The overall percentage marks obtained by Ramesh in all the three subject together was 54%. How many marks did he score in Subject C?

Directions:  Study the bar-graph given below & answer the questions.
Pie-chart given below shows the percentage distribution of total no. of boys in six different Schools.
Total Boys in all schools together = 6400

If the ratio boys to girls in School A and School B is 2 : 3 and 3 : 7 respectively. Then find the difference of total girls in school B and A?

A sum of money at double the rate of simple interest doubles itself in 10 years. In how much time will that amount be triple of itself?

A man spends $$ {2\over3}rd$$ of his income. If his income increases by 14 % and the expenditure increases by 20%, then the percentage increase in his savings will be

Two men are standing on opposite ends of a bridge 1200 meters long. If they walk towards each other at the rate of 5m/minutes respectively, in how much time will they meet each other?

A varies jointly with B and C. A = 6 when B = 3 and C = 2. Find A when B = 5 and C = 7.

The following table shows the number of units of product produced and sold by a company over the course of six years.

The number of units of product sold in 2016 is approximately what percent more than the average number of units produced from 2012 to 2016?

simplify the following equation
$$ (1-{1\over3})(1-{1\over4})(1-{1\over5})......(1-{1\over n})$$