Question

6. Manu’s mother’s age is 5years more than three times Manu’s age. Manu’s grandmother’s age is two years less than twice her mother’s age .if sum of ages of all the three persons is 113. Find their ages.​

Answer 1

Answer:

Manu's age - 10 years

Manu's mother age - 35 years

Manu's Grandmother age - 68 years

Answer 2

Step-by-step explanation:

let manu's age be (x)

then his or her mother's age will be -- (3x)+5

and his grandmother's age will be -- (3x)+5×2-2 = (6x)+10-2

solution --

(3x)+5+6x+10-2+x=113

(3x)+(6x)+(x)=113-5-10+2

(10x)=100

(x)=100÷10

(x)=10

age of manu will be (x) =

10 years

manu's mother age will be (3x)+5 = 3×10+5 = 35 years

manu's grandmother's age will be (3x)+5×2-2 = (6x)+10-2 = 60+10-2 =

68 years