The age of Sohail , Afzal and Bilal are 17,16 and 12 respectively, if the age of Aslam also included the average of the ages increases by 5. What is the age of Aslam?

Average formula = (A+B+C)/03
17+16+12=45
45/3=15 Years (Average Age)
15+5=20 Years (Average after 05 Years increase)
Suppose, Aslam Age = X

Average formula = (A+B+C)/03
17+16+12=45
45/3=15 Years (Average Age)
15+5=20 Years (Average after 05 Years increase)
Suppose, Aslam Age = X
Average of All are= (17+16+12+X)/4=20
(45+X)4=20
45+X=20*4
45+ X=80
X=80-45=35

Average of All are= (17+16+12+X)/4=20
(45+X)4=20
45+X=20*4
45+ X=80
X=80-45=35