the ages of a and b three years ago were x and y+2 years ,therefore the sum of their ages 4 years hence will be ______ years
Answers
Answered by
11
of a :-
age 3 years ago = x+4
present age = x+ 4 - 3
age of a after 4 years = x + 4 - 3 + 4 = x + 5
of b :-
age 3 years ago = y + 2 + 4
present age = y + 2 + 4 - 3
age of b after 4 years = y+2 +4 - 3 + 4 = y + 7
sum = x + 5 + y + 7 = x + y + 12
age 3 years ago = x+4
present age = x+ 4 - 3
age of a after 4 years = x + 4 - 3 + 4 = x + 5
of b :-
age 3 years ago = y + 2 + 4
present age = y + 2 + 4 - 3
age of b after 4 years = y+2 +4 - 3 + 4 = y + 7
sum = x + 5 + y + 7 = x + y + 12
buntytemkar6042:
but x and y+2 was 3 years ago not the present age
oppsie ... read the Q wrg
hope its ok this time ^_^
yup and thank you very much
its mah pleasure to help ^_^
Answered by
10
given,
after 3 years ages are
x+3,y+5
after 4 years ages are
x+7,y+9
their sum= x+y+7+9=>
x+y+16
after 3 years ages are
x+3,y+5
after 4 years ages are
x+7,y+9
their sum= x+y+7+9=>
x+y+16
but x and y+2 are not present ages they are 3 years ago ages
here is the answer i corrected it
why y + 7 it should have been y+5
thanks
your welcome
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