Thursday, April 15, 2010

math problems #5

My favorite question was number 10.

10) The sum of five consecutive integers is 75. The sum of the largest and smallest of these five integers is:
a)15 b)25 c)26 d)30 e) 32

I first started with 12+13+14+15+16 but that equaled to 70.
so next i tried
13+14+15+16+17 which equaled to 75!
and than you have to add the largest and smallest integer (13+17) which equaled to 30, therefore the answer is number d!
Overall, i like questions like these. Where you have to add up different numbers, or consecutive numbers to find your answer. I think these types of questions are fun, and good for the brain. I also like this questions because it is straightforward.

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