Question 1199708: When i divided 48 by the sum of 5 and a certain number,the result is 3.what is the number Found 2 solutions by josgarithmetic, ikleyn:Answer by josgarithmetic(39617) (Show Source):
You can put this solution on YOUR website! .
When i divide 48 by the sum of 5 and a certain number,
the result is 3. What is the number ?
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It is a simple arithmetic problem.
To find the answer, move backward:
- first divide 48 by 3 to get 16;
- then subtract 5 from 16 to get 11.
The number of 11 is your ANSWER.
Doing this way, you do not need solving any equations.
You even do not need write them.
You even do not need to know what an equation is and how to solve them.
Hence, you can teach very young students solving such problems by the backward method,
and such teaching will definitely develop their mind (!)
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