Twice the difference between two numbers is equal to their sum. If one number is 15, find the other number.

10 persons can do a job in X days. If 20 persons with twice the efficiency can do the same job in 5 days, then find the value of X?

Directions : The graph shows the demand and production of different companies. Study the graph and answer the following questions.

What is the lowest production company?

The given pie chart shows the percentage of students enrolled for the courses A, B, C, D and E in a university and the table shows the percentage of students that passed, out of the enrolled students.
Total Students=60,000

How many students passed in Course C?

The marked price of an article is Rs.800. A retailer buys it for Rs.540 after getting two successive discounts. The first discount is 25 %. What is the second discount?

Speed of boat in downstream and upstream are 32km/hr and 23km/hr. Find the speed of current ?

If θ then (tanθ+cosθ)=?

If 32 is removed from the data: 20, 25, 28, 32, 38, 45, 48, 52, then the median s increaser by?