Question

3 लड़कों की औसतन आयु 16 वर्ष है यदि उनकी आयु 3:45 का अनुपात हो तो सबसे बड़े लड़के की आयु कितनी होगी ​

Answer 1

Explanation:

Let the average age = sum of age/number of people

Average age= sum of age/ number of people

16 =sum of age / 3

16*3 = sum of age

48= sum of age

Ratio 3:4:5

let ratio be x

3x +4x+5x =48

12x=48

x=48/12

x=4

big boy age =4*5

=20 year