Question

the difference between two sisters age is 5 years. 10 years ago if the elder one was twice as old as younger one find their present age

Answer 1

HEYA!!
-----------

Let the age of first sister be X years

Let the age of second sisters be Y years

Let us assume X is greater than Y

ACCORDING TO THE GIVEN QUESTION:-
====================================

X - Y = 5 ------------------[ 1 ]

1 0 years Ago ,

( X - 10 ). = 2 ( Y - 10 )

X - 10 = 2Y - 20

X - 2Y +20 - 10 = 0

X - 2Y = -10

X - Y = 5

- +. -

-Y = -15

Y = 15

Put Y = 15 in (1)

X - 15 = 5

X = 20

⭐Age of sisters are 20 years and 15 years .

-----------------------------------------------------------------------------------------------------