Question

0. There are 30 boys in a class and
their average age is 15 years and 1
month. Three new boys are put in
this class, which raised the average
age to 15 years and 2 months. One
new boy is aged 16 years and the
other two are twins. How old are the
twins?​

Answer 1

Answer:

The age of the twins are 15 years.

Step-by-step explanation:

Total age of 30 boys = 30 x 15 = 450

Total age of the rest of boys after the bot aged 20 years leaves = 450 - 20 = 430

Let x be the age of the younger new comer.

Then, 430 + x + x + 5 / 31 = 15

⇒ 435 + 2x = 31 × 15 = 465

⇒ 2x = 30

⇒ x = 15 years.

Hence the age of the twins are 15 years.

                  I hope this answer will help you.....

Answer 2

Answer:

THE AGE OF THE TWINS IS 15.55 YEARS