very easy -3

Logic Level 1

Divide 40 by half and add ten. What is the answer?


The answer is 90.

Mohammad Khaza by Mohammad Khaza , 20, Bangladesh

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2 solutions

40 ÷ 0.5 + 10 = 90

2 Helpful 1 Interesting 0 Brilliant 0 Confused
Ong Zi Qian
Feb 23, 2018

I called "40" as the "starting number" in this question.

The question asks us to "divide 40 by half" and "add ten".

Therefore, we get the answer is 40 / ( 1 / 2 ) + 10 = 90 40/(1/2)+10=\boxed{90}

1 Helpful 1 Interesting 0 Brilliant 0 Confused

I did the math on paper when my first answer was incorrect. And arrived at the answer 90, I think intuitively when I multiplied the 40 by 2, then added the +10.

Ellen Newman - 12 months ago

Linguistic question by a non native speaker: I realize that this is done in order to throw the reader, but is "half" on it's own instead of "one half" really enough? Wouldn't that technically turn the equation into 40 / (40/2) + 10 as in "half (of the previous value)" Just wondering... Great catch, though!

Kevin Maniera - 11 months, 4 weeks ago

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