K. 147. In a sale, a forint (HUF, Hungarian currency) car was sold for forints. In the same sale (that is, with a price reduced by the same percentage), another car was sold for forints less than 3/5 of its original price. What was the original price?
(6 points)
This problem is for grade 9 students only.
Deadline expired on 10 January 2008.
Google Translation (Sorry, the solution is published in Hungarian only.)
Megoldás. A 2 310 000 Ft a 4 200 000 Ftnak 55%a, tehát a második autó árának 55%a 146 000 Fttal kevesebb, mint a 60%a. Ez azt jelenti, hogy az autó eredeti árának 5%a 146 000 Ft, a teljes ár ennek 20szorosa, azaz 2 920 000 Ft.
Statistics on problem K. 147.  211 students sent a solution.  
6 points:  173 students. 
5 points:  9 students. 
4 points:  1 student. 
3 points:  3 students. 
2 points:  2 students. 
1 point:  9 students. 
0 point:  1 student. 
Unfair, not evaluated:  9 solutions. 
Unfair, not evaluated:  4 solutions. 


Problems in Mathematics of KöMaL, December 2007
