The sum of three consecutive multiples of 3 is 81. What is the largest number?
Choose one.
A) 24
B) 28
C) 30
D) 32
E) 35
Let the numbers be 3x, 3x + 3 and 3x + 6.   Then,   3x + (3x + 3) + (3x + 6) = 81   9x = 72   x = 8   Largest number = 3x + 6 = 30.   Answer : 30
<result>C</result>
The sum of three consecutive multiples of 3 is 81. What is the largest number?