Question

the difference between the age of A and B is 12 years. the ratio of their age is 3:5 then what is the age of B ?​

Answer 1

Answer:

B=

Step-by-step explanation:

A-B=12

A:B=3:5

=>A=3x

Answer 2

Answer:

B's age = 30 years

Step-by-step explanation:

A:B=3:5

=>5A = 3B

=> A = (3B)/5         ------------( 1 )

B - A = 12               -----------( 2 )

Substituting ( 1 ) in ( 2 )

=> B - (3B/5) = 12

=> (5B - 3B)/5 = 12

=> 2B = 60

=> B = 60/2

=> B = 30