Find the whole quantity if: 40% of it is 500km.

Find the whole quantity if: 5% of it is 600.

Find the whole quantity if: 12% of it is Rs1080.

Find the whole quantity if: 70% of it is 14 minutes.

Find the whole quantity if: 8% of it is 40 litres.

A first order reaction is carried out starting with 10 mol L^(-1) of the reactant . It is 40% complete in 50 min . If the same reaction is carried out with an initial concentration of 5 mol L^(-1) the percentage of reaction that is completed in 50 min is

Find the whole number such that four times the number subtracted from three times the square of the number makes 15.

Avena coleoptile test to find out the quantity of growth promoting hormones was discovered by

Find the ratio of the following: (d) 500 mL to 2 litres