The ratio of copper and zinc in a brass alloy is 13 : 7. How much zinc will be there in 100 kg of the alloy?

The ratio of land to water for the whole earth is 1 : 2 and in the Northern Hemisphere, it is 2 : 3. What is the ratio of land to water in the Southern Hemisphere?

In the binary system, what is the decimal value of 1011?

The ratio of land to water for the whole earth is 1 : 2. In the Northern Hemisphere, it is 2 : 3. What is the ratio in the Southern Hemisphere?

In March 2026, which historical manuscript was digitized and made public by the National Archives of India under the 'Lipi-Sangrah' project?

If (a + b) : (a - b) = 15 : 1, then what is the ratio (a² + b²) : (a² - b²)?

Find a third proportional to (x² - y²) and (x - y).

A sum of ₹5,000 becomes ₹6,050 in 2 years at compound interest. What is the annual rate of interest?

The ratio of land to water on the whole Earth is 1 : 2 and in the Northern Hemisphere it is 2 : 3. What is the ratio of land to water in the Southern Hemisphere?

What is the decimal equivalent of the binary number 1011?

In binary language, how is the decimal number '10' represented?

The ratio of land and water on Earth is 1:2. In the Northern Hemisphere, the ratio is 2:3. What is the ratio of land and water in the Southern Hemisphere?

What is the binary representation of the decimal number 5?

The ratio of the radius of two circles is 3 : 5. Find the ratio of their areas.

The ratio of the ages of X and Y is 3 : 1. After 15 years, the ratio will be 2 : 1. Find the present age of X.

A bag contains ₹1, 50p, and 25p coins in the ratio 5 : 6 : 8. If the total value is ₹420, find the number of 50p coins.

If 10 men can complete a work in 12 days, how many men are required to complete the same work in 8 days?

What is the binary representation of the decimal number 10?

The prices of two cycles are in the ratio 16 : 23. If the price of the first cycle is increased by 10% and that of the second by ₹477, the ratio becomes 11 : 20. Find the original price of the second cycle.

If the ratio of the areas of two circles is 4 : 9, then the ratio of their circumferences is: