"A number is doubled and 9 s added. If the resultant is trebled, it becomes 75. What is that number?
Channel: Doubtnut
Date: 2020-04-05

"A number is doubled and 9 s added. If the
 resultant is trebled, it becomes 75. What is that number?
a. 3.5 
 b. 6 c. 8 d. none of these"