Question

The average of four sisters is 20.If the ages of 3 sister's are 16yr 18 ye and 20 yr the age of fourth sister is

Answer 1

Answer:

Average = 20= (16+18+20+x)/4

80=54+x

x= 26yrs

Hope this helps mate

Please mark me as brainliest if it helped

Answer 2

Answer:

22 or 14 i think is the answer

Step-by-step explanation:

because 16yrs + 2 = 18 and 18 + 2= 20

so 22 i think is the answer