Grandfather and grandmother
The old mother is 5 years younger than the old father. Together they are 153 years old. How many years has each of them?
Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):
Showing 0 comments:
Be the first to comment!
To solve this example are needed these knowledge from mathematics:
Next similar examples:
- Father and son
When I was 11, my father was 35 years old. Today, my father has three times more years than me. How old is she?
- Ages 2
A man's age is 4 times his son's age. After 5 years he will be just twice his son's age, find their ages.
- Journey to school
On the way to school I went steady step. In the first half of the journey, I counted every second step, in the second half every third. How many steps I do when I went to school if I counted double step are 250 more than three steps?
- Two trains
There were 159 freight wagons on the railway station creating 2 trains. One had 15 more wagons than the other. How many wagons did each train have?
- Boys and girls
There are 48 children in the sports club, boys are 10 more than girls. How many girls go to the club?
What number is 20 % smaller than the number 198?
Marry and John together weighing 49 kg. Their weights are in ratio 1:6. Determine their weights.
- Waiting room
In the waiting room are people and flies. Together they have 15 heads and 50 legs (fly has 6 legs). How many people and flies are in the waiting room?
- Linear system
Solve this linear system (two linear equations with two unknowns): x+y =36 19x+22y=720
Students are accommodated in 22 rooms. Rooms were 4 and 6 bed. How many rooms in which type occupied 106 children there?
- Simple equations
Solve system of equations: 5x+3y=5 5x+7y=25
- Two numbers
Find two numbers whose difference and ratio is 2.
1 mason casts 30.8 meters square in 8 hours. How long casts 4 masons 178 meters square?
- Spain vs USA
Spain lost to the US by 4 goals. In the match total fell 10 goals. How many goals gave the Spain and how the United States?
- Two numbers
We have two numbers. Their sum is 140. One-fifth of the first number is equal to half the second number. Determine those unknown numbers.
- The percentages in practice
If every tenth apple on the tree is rotten it can be expressed by percentages: 10% of the apples on the tree is rotten. Tell percent using the following information: a. in June rained 6 days b, increase worker pay 500 euros to 50 euros c, grabbed 21 fro
Solve the inequation: 5k - (7k - 1)≤ 2/5 . (5-k)-2