When the price of an audio system was reduced by 20%, the sale increased by 80%. What was the net effect on the sale?

If x:y=3:2 then the ratio $$ {2\ x^{2}+3\ y^{2}}:{3\ x^{2}}-{2\ {y^{2}}}$$ is equal to

The ratio of two numbers is 2: 3 and their L.C.M is 48.  What is the number?

The line graph shows the number of vacancies of accountants in a certain company. Study the diagram and answer the following questions.

What is the different between maximum and minimum vacancies?

The edges of a cuboid are in the ratio 1 : 2: 3 and its surface area is  88 sq.cm. The volume of the cuboid is:

A works twice as fast as B and B works twice as fast as C. All three working together can finish a task in 4 days with the help of D. If D alone can finish the same task in 16 days, then in how many days will A alone finish 75 % of the same task?

What is the compound interest on Rs. 48,000 for 2 years at 20% p.a., if interest is compounded annually?

Directions: The following table represents the percentage marks of four students in six subjects.
Consider the table and answer questions based on it

Average marks obtained in Science is higher than that of Maths by