In an examination, a student was asked to find 3/11 of a certain number, by mistake, he found 3/4 of it. His answer was 315 more than the correct answer. The given number is –

The ratio of the cost of table and chair is 9 : 4. The cost of the table is Rs 1250 more than the cost of the chair. What is the cost of the chair?

If the height of the cylinder is 4 times its circumference, what is the volume of the cylinder with respect to its circumference c?

What is the greatest common factor of 2³ × 7² and 2⁵ × 3¹?

A batsman scored 87 runs in the 21st match in his career. His average of runs per match increased by 2. What was his average before the 21st match?

The ratio of the number of boys and girls in the parade of students of a school is 9 : 7 respectively and the total number of students is 256. Find the number of girls?

The ratio of the square of a number and the inverse of its cube is 243/16807. what is the number?

5√2 cm in a circle. If the long chord makes a right angle at the centre, then what will be the length of the radius of the circle?