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GMAT - Problem Solving - Ratio & Proportion

Water consists of Hydrogen and Oxygen in the mass ratio 2:16. What is the mass of hydrogen in 144 grams of water?

Water consists of Hydrogen and Oxygen in the mass ratio 2:16. What is the mass of hydrogen in 144 grams of water?

The ratio between hydrogen and oxygen is 2:16

i.e.

18 grams of water will contain 2g of Hydrogen and 16 g of Oxygen

1g of water will contain 2/18 g of Hydrogen

144g of water will contain 2/18 * 144g of Hydrogen

16g

The ratio between hydrogen and oxygen is 2:16

i.e.

18 grams of water will contain 2g of Hydrogen and 16 g of Oxygen

1g of water will contain 2/18 g of Hydrogen

144g of water will contain 2/18 * 144g of Hydrogen

16g