Saturday

April 19, 2014

April 19, 2014

Posted by **Jimmy** on Wednesday, October 10, 2012 at 7:09pm.

- math -
**Reiny**, Wednesday, October 10, 2012 at 8:01pmIn any string of consecutive integers, there must appear a 2, a 5 and a 0,

so the product of any 10 consecutives must end in ...00

let the first of the number be a

The the sum of 10 cosecutives

= (10/2)(2a + 9(1)) = 10a + 45

10a must end in a 0, so subtracting 10 from the product which ends in at least 00 will keep the last digit as a 0

subtracting 45 from last will leave us with a 5 in the unit digit.

**Related Questions**

math - i dont get this question consecutive integers are integers that differ by...

math - i dont get this question consecutive integers are integers that differ ...

Math - When you solve questions like "The sum of 3 consecutive integers is 147. ...

math plllls heelp - How many integers 1≤N≤1000 can be written both ...

math - Consecutive integers are integers that follow each other in order (for ...

heeeeeeeeeeeeeelp maths - How many integers 1≤N≤1000 can be written ...

math - A. Four times one odd integer is 14 less than three times the next even ...

math - 1. The largest of five consecutive integers is twice the smallest. Find ...

Algebra - Cant figure out what to do (equations) 1)Find three consecutive even ...

math - consecutive even integers can be represented by x,x+2,x+4 and so on. ...