Question

66. The average age of A. B and C is 25
years. If the average age of A and B
is 30 years, then find the age of C.
(a) 15 years
(b] 20 years
(c) 18 years
(d) 12 years
​

Answer 1

Answer:

15

Step-by-step explanation:

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Answer 2

Answer:

a+b+c=25

a+b/2=30

c/2=25-30

c=10