Asked by faith

the sum of 3 numbers is 81 the second number is twice the first and the third number is 6times more than the second. Find the number.
Answered by bobpursley
sum=81=a+b+c
b=2a
c=6+b

81=a+2a+6+2a
81=5a+6
a=15
b=30
c=36
Answered by Reiny
Easy to translate into Math ...

let the first be x

"the second number is twice the first "
---> 2x
"the third number is 6times more than the second"
---> 2x+6

"the sum of 3 numbers is 81"
--> x + 2x + 2x+6 = 81

solve for x , and sub into my definitions
Answered by Miracle
15+2(15)+2(15)+6=81
15+30+30+6=81
81=81
Answered by Stephen
I do not understand
Answered by Stephen
The third number is six more than the second number.
Answered by Anonymous
I don't understand
Answered by Derpul
a is15
b is 30.
c is 90.
Answered by Simon Esther
What do you mean you don't understand
Answered by Louis
I don't understand please can you explain further
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