# Khan/khan-exercises

Added third type of problem to arithmetic word problems.

1 parent e381f26 commit c825baf238aacc2e05934acc4158931117605a86 bradleyt committed May 26, 2011
Showing with 35 additions and 0 deletions.
1. +35 −0 exercises/arithmetic_word_problems.html
 @@ -24,6 +24,15 @@ randRange( 4, 12 ) ITEM_1_COUNT * ITEM_1_COST TOTAL_SPENT_ON_1 + ITEM_2_COST + + + randRange( 10, 99 ) + getNontrivialFactor( TOTAL_ITEMS_3 ) + TOTAL_ITEMS_3 / ITEMS_3 + getNontrivialFactor( TOTAL_ITEMS_3 ) + TOTAL_ITEMS_3 / NEW_ITEMS_3
@@ -94,6 +103,32 @@

+ +
+

+ When person(1) places plural( ITEMS_3, item(1), itemPlural(1) ) in each + group(1) he(1) ends up with plural( GROUPS_3, group(1), groupPlural(1) ). + If he(1) wants plural( NEW_GROUPS_3, group(1), groupPlural(1) ), how many itemPlural(1) + should he(1) put in each group(1)? +

+ +

NEW_ITEMS_3

+ +
+

+ plural( ITEMS_3, item(1), itemPlural(1) ) \times + plural( GROUPS_3, group(1), groupPlural(1) ) = + plural( TOTAL_ITEMS_3, item(1), itemPlural(1) ). +

+ +

+ If we divide the plural( TOTAL_ITEMS_3, item(1), itemPlural(1) ) into + plural( NEW_GROUPS_3, group(1), groupPlural(1) ), then we get + TOTAL_ITEMS_3 \div NEW_GROUPS_3 = NEW_ITEMS_3 + itemPlural(1) per group(1). +

+
+