The ratio between the boys and girls in a class is 6:5 respectively. If 8 more boys join the class and two girls leave the class then the respective ratio become 11:7. What is the number of boys in the class now?

A shopkeeper earns a profit of 25 percent on selling a radio at 15 percent discount on the Printed price. Finds the ratio of the Printed price and the cost price of the radio.

What must be added to two numbers that are in the ratio of 3:4, so that they become in the ratio 4:5?

A sum is divided among 120 men and some women in the ratio 15:21. If each man gets Rs. 5 and each woman gets Rs. 4, the number of women is

The ratio of income of A, B and C is 7: 9: 12 and their expense ratio is 8: 9: 15, if the savings of A is 1/4 of its total income, then the savings of A, B and C What will be the ratio?

If a : b = 7 : 9 and b : c = 5 : 7, then what is a : c ?

A, B, C and D have to share the profit in the ratio of 4: 8: 11: 15. If there is a difference of Rs 22,000 between the minimum and maximum ratios, what is the sum of the other two ratios?

If X: Y = 4: 3 and Y: Z = 5: 3. If X+Y+Z = 1584. Find X?