Question

Average age of jawans of a platoon was 24 years three new jawans were recruited whose ages were 27 30 and 23 years the average went up to 24 years and 2 months find the number of jawans before new recruitment.

Answer 1

Answer:

Step-by-step explanation:

Let no. of jawans be n

(x1+x2.......... +xn) /n=24

24n+(27+23+30) /3=265/6

24n+80/3=265/6

24n=265/6-80/3

=105/6

=105*24/6

n = 420