Question

ravi is 3 times as old as her little sister sara, but in 3 more years he will be twice old as sara will be then . Find their present ages​

Answer 1

ANSWER:-

SARA PRESENT AGE =3 YEARS

RAVI PRESNT AGE = 9 YEARS

QUESTION:-

ravi is 3 times as old as her little sister sara, but in 3 more years he will be twice old as sara will be then . Find their present ages​ ?

GIVEN:-

ravi is 3 times as old as her little sister sara

in 3 more years he will be twice old as sara

TO FIND:-

THEIR PRESENT AGES

EXPLANATION:-

LET THE PRESENT AGE OF SARA -x

then present age of Ravi-3x

AFTER 3 YEARS THEIR PRESENT AGES:-

RAVI-3x+3

SARA- x+3

NOW TO EQUAL THE EQUATION WE WILL DO 3 TIMES OF SARA AGE i.e 2(x+3)

A.T.Q

3x+3=2(x+3)

3x+3=2x+6

3x-2x=6-3

x=3

MEANS SARA PRESENT AGE =3 YRS

AND RAVI PRESENT AGE = 3x ==> 3× 3===>9 years