Question

Age of a grandmother is 8 times as old as her grand daughter. Two years ago grandmother s age was 10 times as old as her grand daughter. What is the grand mother’s present age??

Answer 1

Answer:

Grandmother's age is 72 years

Grandmother's age is 72 yearsStep-by-step explanation:

Grandmother's age is 72 yearsStep-by-step explanation:let grand daughter age be = x

Grandmother's age is 72 yearsStep-by-step explanation:let grand daughter age be = xthen grand mother age will be = 8x

Grandmother's age is 72 yearsStep-by-step explanation:let grand daughter age be = xthen grand mother age will be = 8xTwo years ago:-

Grandmother's age is 72 yearsStep-by-step explanation:let grand daughter age be = xthen grand mother age will be = 8xTwo years ago:-Grand daughter age would be = (x- 2)

Grandmother's age is 72 yearsStep-by-step explanation:let grand daughter age be = xthen grand mother age will be = 8xTwo years ago:-Grand daughter age would be = (x- 2)And grandmother age would be = 10(x - 2)

Grandmother's age is 72 yearsStep-by-step explanation:let grand daughter age be = xthen grand mother age will be = 8xTwo years ago:-Grand daughter age would be = (x- 2)And grandmother age would be = 10(x - 2)The difference between their ages will be the same forever. Therefore

Grandmother's age is 72 yearsStep-by-step explanation:let grand daughter age be = xthen grand mother age will be = 8xTwo years ago:-Grand daughter age would be = (x- 2)And grandmother age would be = 10(x - 2)The difference between their ages will be the same forever. Therefore 8x - x = 10(x - 2) - (x - 2)

Grandmother's age is 72 yearsStep-by-step explanation:let grand daughter age be = xthen grand mother age will be = 8xTwo years ago:-Grand daughter age would be = (x- 2)And grandmother age would be = 10(x - 2)The difference between their ages will be the same forever. Therefore 8x - x = 10(x - 2) - (x - 2) 7x = 10x - 2 - x + 2

Grandmother's age is 72 yearsStep-by-step explanation:let grand daughter age be = xthen grand mother age will be = 8xTwo years ago:-Grand daughter age would be = (x- 2)And grandmother age would be = 10(x - 2)The difference between their ages will be the same forever. Therefore 8x - x = 10(x - 2) - (x - 2) 7x = 10x - 2 - x + 2 7x = 9x - 18

Grandmother's age is 72 yearsStep-by-step explanation:let grand daughter age be = xthen grand mother age will be = 8xTwo years ago:-Grand daughter age would be = (x- 2)And grandmother age would be = 10(x - 2)The difference between their ages will be the same forever. Therefore 8x - x = 10(x - 2) - (x - 2) 7x = 10x - 2 - x + 2 7x = 9x - 18 -2x = -18

Grandmother's age is 72 yearsStep-by-step explanation:let grand daughter age be = xthen grand mother age will be = 8xTwo years ago:-Grand daughter age would be = (x- 2)And grandmother age would be = 10(x - 2)The difference between their ages will be the same forever. Therefore 8x - x = 10(x - 2) - (x - 2) 7x = 10x - 2 - x + 2 7x = 9x - 18 -2x = -18 x = 18/2

Grandmother's age is 72 yearsStep-by-step explanation:let grand daughter age be = xthen grand mother age will be = 8xTwo years ago:-Grand daughter age would be = (x- 2)And grandmother age would be = 10(x - 2)The difference between their ages will be the same forever. Therefore 8x - x = 10(x - 2) - (x - 2) 7x = 10x - 2 - x + 2 7x = 9x - 18 -2x = -18 x = 18/2 x = 9

Grandmother's age is 72 yearsStep-by-step explanation:let grand daughter age be = xthen grand mother age will be = 8xTwo years ago:-Grand daughter age would be = (x- 2)And grandmother age would be = 10(x - 2)The difference between their ages will be the same forever. Therefore 8x - x = 10(x - 2) - (x - 2) 7x = 10x - 2 - x + 2 7x = 9x - 18 -2x = -18 x = 18/2 x = 9Therefore, grandmother's age = 8x.

Grandmother's age is 72 yearsStep-by-step explanation:let grand daughter age be = xthen grand mother age will be = 8xTwo years ago:-Grand daughter age would be = (x- 2)And grandmother age would be = 10(x - 2)The difference between their ages will be the same forever. Therefore 8x - x = 10(x - 2) - (x - 2) 7x = 10x - 2 - x + 2 7x = 9x - 18 -2x = -18 x = 18/2 x = 9Therefore, grandmother's age = 8x. = 8 x 9. (as x = 9)

Grandmother's age is 72 yearsStep-by-step explanation:let grand daughter age be = xthen grand mother age will be = 8xTwo years ago:-Grand daughter age would be = (x- 2)And grandmother age would be = 10(x - 2)The difference between their ages will be the same forever. Therefore 8x - x = 10(x - 2) - (x - 2) 7x = 10x - 2 - x + 2 7x = 9x - 18 -2x = -18 x = 18/2 x = 9Therefore, grandmother's age = 8x. = 8 x 9. (as x = 9) = 72 years

Answer 2

Answer:

The grand mother’s present age is 72 years.

Step-by-step explanation:

Given, age of a grandmother is 8 times as old as her grand daughter.

Let,age of grand daughter be x years.

So, according to question age of grand mother be 8x years.

It is also given that two years ago grandmother s age was 10 times as old as her grand daughter.

Before two years,age of grand daughter was $(x - 2) \: years$

and age of grand mother before 2 years was $(8x - 2) \: years$

According to question,

$(8x - 2) = 10 \times (x - 2)$

We are removing first brackets,

$8x - 2 = 10x - 20$

We are separating variable and constant part,

$10x - 8x = - 2 + 20 \\ 2x = 18 \\ x = \frac{18}{2} \\ x = 9$

Therefore age of grand daughter is 9 years and age of grand mother is (8×9) = 72 years.

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