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A number is doubled and half of the numb...

A number is doubled and half of the number is added to it. If 10 is substracted from the result, then we get a number which is one less than the original number. Find the original number

A

5

B

6

C

7

D

8

Text Solution

Verified by Experts

The correct Answer is:
b
Let the number be x.
According to the problem,
`2x + (x)/(2) - 10 = x - 1`
`2x + (x)/(2) - x = 10 - 1`
`x + (x)/(2) = 9`
`x = 6`
Hence, the correct option is (b)
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