Question

The average age of 20 sheep in the herd is 15 years. Five new sheep join and the new
average become 14 years. What was the average age of the five new sheep?​

Answer 1

Step-by-step explanation:

20sheep * 15years=300

20sheep + 5sheep =25 sheep

14years * 25 sheep = 350

350 -300 =50

50/5 = 10 years

Answer 2

Solution :-

given that,

→ The average of 20 sheep = 15 years

So,

→ Total age of 20 sheeps = 15 * 20 = 300 years .

now,

→ New average = 14 years .

→ Total sheep = 20 + 5 = 25 sheeps .

So,

→ Total age of 25 sheeps = 25 * 14 = 350 years .

then,

→ Total age of New 5 sheeps = 350 - 300 = 50 years .

therefore,

→ The average age of the five new sheep = 50/5 = 10 years (Ans.)

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