If the difference between the four times and nine times of a number is 45, then the number is
Question and options
If the difference between the four times and nine times of a number is 45, then the number is
- 4
- 6
- 8
- 9
Answer and explanation
Correct answer: D - 9
Let the number be . Then , so . A check confirms it: , while 8 would give only .
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CUSAT CAT M.Sc. Bioethics
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