Ammonia is a gas with a characteristic pungent odor. it is sold as a water solution for use in household clea?

Ammonia is a gas with a characteristic pungent odor. it is sold as a water solution for use in household cleaning. The gas is a compound of nitrogen and hydrogen in the atomic ratio 1:3. A sample of ammonia contains 7.933 g N and 1.712 g H . What is the atomic mass of N relative to H? The book answer is 13.90

1.712 g is the mass of 3 H’s

Mass of 1 H = 1.712 ÷ 3 = 0.570667

Relative mass = 7.933 ÷ 0.570667 = 13.90

When you see 2 sets of numbers, 1 : 3 and 7.933 , 1.712;

7.933 represents 1 and 1.712 represents 3

Sometimes I just divide and multiply until I get the answer. This provides a clue to the correct process to get the answer!

This question is not very clear!

Pungent Odor