Of the three numbers, the first is twice the second and the second is thrice the third. If the average of the three numbers is is 10, the largest number is:
A. 12
B. 15
C. 18
D. 30
Solution(By Examveda Team)
Let Third number is X.
Second Number = 3X.
Third Number = 6X.
Average = 10
(X +3X + 6X)/3 = 10.
10X = 30
X = 3
Largest Number = 6X = 6*3 = 18.
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