Question

Jim was thinking of a number. Jim halves it and gets an answer of 3.4. What was the original number?

Answer 1

6.8

Explanation:

To tackle these types of questions, you essentially have to 'undo' or ' reverse' the calculation/s that is being done in the question.

In the question, the calculation that is being done is 'halfing' or 'dividing by 2'.

So to find the original number you have to do the opposite - double or 'multiply by 2'

Therefore

3.4 x 2 = 6.8

hope this helps :)