Question

a is grater then b by 2 b is greater then c by 10 if a+b+c = 130 then (b+c) - a =?
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Answer 1

Answer:

a=b+2.

b=c+10. c=b-10

a+b+c=130

b+2+b+b-10=130

3b-8=130

3b=138

b=138/3

b=46

c=36

a=48

b+c-a=46+36-48

=34