An ore contains 16 % zinc. How many kg of ore will be required to get 36 kg of zinc ?

A ore contains 12% copper how many kilograms of the ore are required to get 69 kg of copper

Each bag can contain 127 kgs. of wheat. How many bags will be required to contain 3556 kgs of wheat?

A sample of argentite ore contains 1.34% of Ag_(2)S by mass. How many grams of this ore would give 1g of Ag on extraction?

Two alloys A and B contain copper and zinc in the ratio 7 : 2 and 5 : 3 respectively. How many kg of A and B must be melted in order to get an alloy of 44 kg containing copperand Zinc in the ratio 3 : 1?

A canteen requires 105kgs of wheat for a week.How many kgs of wheat will it require for 58 days?

An important ore of zinc metal is: