A number is doubled and 9 is added, If the resultant is tripled, it becomes 75. What is the number ?
A. 6
B. 3.5
C. 8
D. None of these
Answer: Option C
Solution (By Examveda Team)
$$\eqalign{ & {\text{Let the number is }}x{\text{}} \cr & {\text{According to question,}} \cr & {\text{3}}\left( {2x + 9} \right) = 75 \cr & 2x + 9 = 25 \cr & x = \frac{{16}}{2} \cr & x = 8 \cr} $$This Question Belongs to Arithmetic Ability >> Number System
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