The human body is made up mostly of water. In fact, about 67% of a person’s total body weight is water. If Jyoti weights 56 kg, how much of her weight is water?

Rain forests are home to 90,000 of the 2,50,000 identified plant species in the world. What per cent of the world’s identified plant species are found in rain forests?

Madhu’s room measures 6m × 3m. Her carpet covers 8m². What per cent of floor is covered by the carpet?

The per cent of pure gold in 14 carat gold is about 58.3%. A 14 carat gold ring weighs 7.6 grams. How many grams of pure gold are in the ring?

A student used the proportion to find 5% of 32. What did the student do wrong?