A man earns a profit of 60% when he sells an article at 4/3 of the original selling price. Find the percent profit he makes at original price.

In a triangle, ABC, P and Q are points on AB and AC, respectively, such that AP = 1 cm, PB = 3 cm, AQ = 1.5 cm, and CQ = 45 cm. If the area of ΔAPQ is 12 $${{cm^2}}$$, then find the area of BPQC.

A bar graph shows unit production and unit sold of the different type of mobile company A, B, C, D E and F. Study the bar graph and give the answer of following questions.

Which mobile company have the maximum difference between the unit produced and unit sold.

If A: B=7: 9 and B:C =5 :6 then value of A:C

If the difference between the compound interest and simple interest on a certain sum at 5% per annum for 3 years is Rs.11.40, what is the approximate sum? 

Direction: The following table shows the number of students of 7 colleges A, B, C, D, E, F, G participating in extra-curricular activities :

The median of data pertaining to activity III is 

What should come in place of the question mark '?' in the following number series?

77, 76, 84, 57, ?, – 4

The length of a chord which is at a distance of 12 cm from the center of a circle of radius 13 cm is