A sample of 50 litres of glycerine is found to be adulterated to the extent of 20 % . How much pure glycerine should be added to it so as to bring down the percentage of impurity to 5 %? 

If , then will be:

Directions: Read the following information carefully and answer the given questions.
M, A, B, C, Y, and Z are six friends. Each of them has different height. Height of the tallest person is 189 cm. A is taller than only B. Y is shorter than only two people. C is not the tallest. M is neither taller than Z nor shorter than C. The difference between the height of third shortest and the tallest person is 9. M is taller than Y.

How many persons are taller than C?

If the 5 digit number 538xy is divisible by 3, 7 and 11, then the value of (x² +y²)  is:

if the monthly salary of a fan employee is increased by , he gets 72 rupees more. His Monthly salary (in rupees) is:

AB is a chord to a circle and PAT is the tangent to the circle at A. If ∠BAT=75° and ∠BAC=45° and C being a point on the circle, then ∠ABC is equal to

What is the Area of the given Field book.

An amount of money appreciates to Rs. 7,000 after 4 years and to Rs. 10,000 after 8 years at a certain compound interest compounded annually. The initial amount of money was