Question

4.
Brian is 2 years older than Bob who is 7 years older than Mark. If their combined age is 61 years, find the age of each person.​

Answer 1

ANSWER

Mark =X

Bob = x+7

Brian = x+7+2=x+9

Total =61

x+x+7+x+9=61

3x+16=61

3x=61-16

3x=45

x=45/3

x=15

SO, X IS EQUAL TO 15.....

Answer 2

Step-by-step explanation:

brian (2 years) than > bob ( 7 years older than) > mark

let suppose mark age is x

bob age is (7 +x)

brian age is ( 2 + 7 + x) = (9+x)

(9 +x) + (7 + x) + (x) = 61

9 + x + 7 + x + x = 61

16 + 3x = 61

3x = 61 - 16

3x = 45

x = 45/ 3

x = 15

mark is 15 years old

bob is( 7 + x = 15 +7=) 22 years old

brian is (9 + x = 9 + 15) = 24 years old