Two alloys are made by gold and copper in the ratio of 7 ∶ 2 and 7 ∶ 11 respectively. Same quantity of both alloys are mixed and third alloy is made. In this third alloy, the ratio between gold and copper is equal to

The ratio of two numbers is 14:25. If the sum of the two numbers is 390, find the larger number.

If  $$\frac{x}{y} = \frac{4}{3}$$​ then $$\frac{x-y}{x+y} =$$​​

If x : 12 :: 4 : 6 then x value is

A vendor mixed 6.3 kg of peanuts, 2100 g of dates, 3.6 kg of cashews and packed the mixture equally into two and half dozen packets. The weight (in grams) of each packet is

The ratio of boys to girls in a school is 5:6. If there are 1100 students in total, find the number of boys.

The ratio of the number of students in Class A to Class B is 4:5. If 8 students are transferred from B to A, the ratio becomes 5:6. Find the original number of students in each class.

If (9x - 3y) = 96 and 4x : 3y = 20 : 21, then find the value of (2x² + 3y²).

Three numbers are in the ratio 2:3:5, and their sum is 100. Find the difference between the largest and smallest numbers.

Which ratio is the largest among 5 : 12, 14 : 31, 8 : 33 and 17 : 39?

A number when increased by 25% becomes equal to another number, which is 20% less than a third number. What is the ratio of the first number to the third number?