a = b+2
c = b-11
)a+b+c)/3 = 70
a+b+c = 210
b+2 + b + b-11 = 210
3b = 219
b = 73
a = 75
c = 62
check:
(73+75+62)/3 = 70
all looks good
The average of a,b,cis 70.the value of a is 2 more than b.the value of b is 11 more than c.find the value of a,b and c.
1 answer
1 answer