Question

Average age of Sunita, Shilpa, Sukanya and Suruchi is 18 years. The average age of
Shilpa, Sukanya , Suruchi and Sneha is 20 years. If Sunita is 16 years old, then how
old is Sneha ?
a) 22 years.
b) 20 years.
c) 24 years.
d) 26 years.​

Answer 1

Answer:

Step-by-step explanation:

sneha's age =24years

Step-by-step explanation:

sneha's age=16years

let shilpa Sukanya suruchi's total average age be a,b,c respectively.

sneha's age be y

Now,

16 +a+b+c/4=18

16+a+b+c=72

a+b+c=56

So,

a+b+c+y/4=20

56+y/4=20

56+y=80

y=24

Answer 2

Answer:

think so c) 24 years..

Step-by-step explanation:

let , shilpa = a

sukanya= b

shuruchi = c

sneha = y.

so,

16 + a + b + c /4 = 18

16 + a + b + c = 72

a + b + c = 56

therefore,

a + b + c + y /4 = 20

56 + y/4 = 20

56 + y = 80

y = 24.

therefore , sneha's age = 24.

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