Question

Garima and Vishakha has some money. If Garima gives Rs. 40 to Vishakha, then Vishakha will have twice the money left with Garima. But, if Vishakha gives Rs. 15 to Garima, then Garima will have thrice as much is left with Vishakha. How much money does each have? ​

Answer 1

The mole (abbreviated mol) is the SI measure of quantity of a “chemical entity,” such as atoms, electrons, or protons. It is defined as the amount of a substance that contains as many particles as there are atoms in 12 grams of pure carbon-12. So, 1 mol contains 6.022×1023 elementary entities of the substance.