Akram thought of a number added 7, multiplied by 3, took away 5 and divided by 4 to give an answer of 7 What was the starting number?
- 3
- 4
- 2
- 5
Explanation
If the final answer is 7, and Akram divided by 4 to get that answer, then the number before division was:
7 x 4 = 28
If Akram took away 5 to get 28, then the number before that was:
28 + 5 = 33
If Akram multiplied by 3 to get 33, then the number before that was:
33 ÷ 3 = 11
And if Akram added 7 to get 11, then the starting number was:
11 - 7 = 4
So, the starting number is 4!
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- 11
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