Czech coins
John has 540 CZK, but he only has 10 and 20 CZK coins. We know that he has 10 CZK coins, seven times more than 20 CZK coins. How many 10CZK coins and how many 20CZK coins did he save?
Final Answer:

Tips for related online calculators
Do you have a system of equations and are looking for calculator system of linear equations?
You need to know the following knowledge to solve this word math problem:
algebraUnits of physical quantitiesGrade of the word problem
Related math problems and questions:
- Increased 65874
Honza received CZK 2,830 every month. He saved from December to October. In May, he increased his pocket money by CZK 2,370, and in August, he saved two times more than in May. How much did he save in October?
- Siblings 48821
Three siblings saved CZK 1,445. Adela saved 10% less than Martin and David 10% more than Adela. How many crowns did each of them save?
- Investigation 6024
Kamil saved up to buy a new phone case, which cost CZK 390. He only put ten and twenty crowns in the cash box. After two months of investigation, he had 25 coins in his treasury. When he calculated the total value of all the coins, he found out that he st
- Together 4071
A family of four saves. The father saved 530 CZK per month, the mother 230 CZK less than the father, Tomáš 275 CZK less than the mother, and Jana 20 CZK more than Tomáš. How much CZK did the family save together in 1 year?
- Available 5472
Alena and Marta want to go on vacation together. Alena lacks CZK 300 to buy the selected ticket, and Marta has 4 times that amount left over. We know that Marta has 50% more CZK available than Alena. How much does a ticket cost?
- Collection 81826
Ema has 3 times more picture cards in her collection than Dana. They have a total of 240 images. They are bought in packs of 10 for CZK 14. How much did Dana's pictures cost?
- Siblings 18943
Two siblings, Eva and Peter, saved a total of 228 CZK. Eva saved three times more than Peter. How much did each of them save?