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December 3, 2008

Number Problem

Using following numbers and following operators you have to produce 28.

Numbers are 1, 5, 7 and 8.

Operators are +, -, * and /

You can use ( ) brackets as well.

Rules:

1-You can use each number only once.

2-You can not use any other operator or symbol.

3-You can not use 1 and 5 as 15.

4-You have to use all of the above number mentioned (1,5,7 and 8)

3 comments:

Ashu said...

(8+1-5)*7

iamgr8 said...

Quite Simple.
(7*5)-8+1

Anonymous said...

28= (1+5* 7)- 8