Question

the age of five girls in a group are:16 years 4 months;15years 8 months;14 years 9 months;15 years 3 months and 14 years 8 months.find the average age per girl in a group​

Answer 1

Answer:

If the age of five girls in a group are:16 years 4 months;15years 8 months;14 years 9 months;15 years 3 months and 14 years 8 months, then the average age per girl in a group​ is 15 years 4 month.

Step-by-step explanation:

First, convert all ages in months

12 months = 1 year

First girl age = 16 years 4 months = 16 × 12 + 4 =196 months

Second girl age = 15 years 8 months = 15 × 12 + 8 = 188months

Third girl age = 14 years 9 months = 14 × 12 + 9 =177months

Fourth girl age = 15 years 3 months= 15 × 12 + 3 = 183months

Fifth girl age = 14 years 8 months = 14 × 12 + 8 = 176months

Now find average by using formula

Average = sum of age/ number of girls

= (196 + 188 + 177 + 183 + 176)/5 =920/5 =184 month

Convert 184 month in years = 184 ÷ 12 = 15 years 4 month