# Reason + system of equations - math problems

#### Number of problems found: 199

• Sweets
3 chocolate and 7 cakes cost 85, - CZK. 2 chocolates and 6 cakes cost 86, - CZK. How much is 5 chocolates and 9 cakes? I wonder how to get the result, but only by logic without the use of a system of equations
• Pair
They have together 39 years - he has 2 times as she was when he was equal as she has today ....
• Have solution
The sum of four consecutive even numbers is 92. Determine these numbers.
• Years
Susan is 3 years and as she will be old as Teodor now him will be 11. How old is Teodor today?
• Three numbers
What are three numbers that have the property: the sum of the first and second numbers' reciprocals is 12/7, the first and third 11/24, and the second and the third 3/8.
• Three ints
The sum of three consecutive integers is 2016. What numbers are they?
• Animals
All without two animals are dogs, all without two are parrots, all without two are cats, the others are chickens. How many animals of individual species does Ms. Novak take care of?
• Antennas
If you give me two antennas will be same. If you give me again your two antenna I have a 5× so many than you. How many antennas have both mans?
• Algebrogram
Solve algebrogram: mama+anna=vari How many solutions are?
• The city
In the city is 2/4 of women married to 3/4 men. What percentage of townspeople is single (not married)?
• Large family
I have as many brothers as sisters and each my brother has twice as many sisters as brothers. How many children do parents have?
• Father and son
When I was eight years old, my father was 30 years old. Today, my father is 3 times more than me. How old am I?
• Friends
Some friends had to collect the sum 72 EUR equally. If the three refused their part, others would have to give each 4 euros more. How many are friends?
• Three numbers
Find three numbers so that the second number is 4 times greater than the first and the third is lower by 5 than the second number. Their sum is 67.
• Unknown numbers
The sum of two consecutive natural numbers and their triple is 92. Find these numbers.
• Trickster
Figliarko has 13 cents less than Hana. Together they have 57 cents. How many cents has Hana and how many Figliarko?
• Magic number
The number 135 split to two addends so that one addend was 30 greater than 2/5 the addend.
• Three friends
The three friends spent 600 KC in a teahouse. Thomas paid twice as much as Paul. Paul a half less than Zdeněk. How many each paid?
• Age
In 1960 my age was equal to the digits sum of the year of my birth. What is my age now?
• Birds
On the farm they have a total of 110 birds. Geese and turkeys together is 47. Hens is three times more than the turkey. How much is poultry by species?

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