Question

Leona is 5 years older than petrus The Sum of their ages is 21 years find both of their ages
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Answer 1

Leona is 13; Petrus is 8.

Explanation:

21 - 5 = 16

16 / 2 = 8

8 + 5 = 13

Answer 2

Leona is 13.

Petrus is 8.

Explanation:

The sum is 21.

Start with a guess of 10 and 11 which add to 21. The difference is only 1.

Add 2 to 11. Subtract 2 from 10.

Now we have 13 and 8.

13 + 8 = 21

13 - 8 = 5

13 and 8 work.

Answer:

Leona is 13.

Petrus is 8.