Wednesday

January 28, 2015

January 28, 2015

Posted by **Sean** on Thursday, January 8, 2009 at 11:11pm.

Instead of 300 it should have read:

3000 exercise books are arranged into 3 piles. The first pile has 10 more number of books than the second pile. The number of books in the second pile is twice the number of books in the third pile. How many books are there in the third pile?

- 4th Grade Math Correction -
**drwls**, Thursday, January 8, 2009 at 11:29pmI realize you are not studying algebra but that is the easiest way I know to solve this problem.

Otherwise you have to try different numbers for one pile, compute the required numbers in the other piles, add them up, and see whatever works.

If there are N books in the third pile, there are 2N in the second pile and 2N +10 in the third pile. The total number of books is 5N + 10 and that equals 3000. That means 5N = 2990 and

N = 598 (pile 3)

2N = 1196 (pile 2)

2N + 10 = 1206 (pile 1)

- 4th Grade Math Correction -
**Cea**, Tuesday, October 19, 2010 at 6:19pmTHANKS SO MUCH GIES

**Answer this Question**

**Related Questions**

4th Grade Math - 300 exercise books are arranged into 3 piles. The first pile ...

MATH HELP!!!! - 3000 exercise books are arranged in 3 piles.the first pile has ...

math - 3000 exercise books are arranged in 3 piles.The first pile has 10 more ...

Math (trigonometry) - MONDAY December 3, 2012 SCHOOL SUBJECTS Art Business ...

math - for the question i posted earlier, pie = 3. im sorry if i confused some ...

math - what do you call the numbers that cannot be arranged into 2 row arrays ...

English - 1. We should not scribble in books in the library. 2. We should not ...

math,correction - can someone correct this for me please. Directions: Evaluate ...

4th grade math - how can thinking about 90 tens help you with 1901-297? the last...

algebra 1 - sorry but on the last question i posted the wrong equation... (3x^2-...