1.

Two number are in the ratio of 7:5. If they differ by 18, what is the number?

Answer»

Answer:

Step-by-step EXPLANATION:

The numbers are 56 and 40.

A/B = 7/5 (1)

A-B = 18 (2)

From (1) we GET 5A = 7B or 5A - 7B = 0 (3)

From (2) we get 5A - 5B = 80 (4)

Subtract (3) from (4) and get 2B = 80 so B = 40.

A = 40 + 16 = 56



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