Functions - practice for 13 year olds - page 142 of 149
Number of problems found: 2978
- Inheritance
After death, the father (♱ 54) remained mother (his wife) and 5 children. Inheritance by law is that the first mother will automatically get half of the property and the other half inherited by heirs, the mother and her 5 children by the same share. Calcu - Shelf
How many ways are there to arrange 6 books on a shelf? - Kids
How many different ways can sit 8 boys and 3 girls in line if girls want to sit on the edge? - Percentages
Expressed as a percentage:
- Bakery
How heavy must prepare bread at a bakery if a bread loses 18% of water during baking and after baking must have 1.7 kg? (Calculate to the nearest gram) - Railways
Railways climb 2.8 ‰. Calculate the height difference between two points on the railway distant 5997 meters. - Number
What number is 12 % smaller than the number 102? - Road
The average climb of the road is given by ratio 1:15. By what angle does road moderate climb? - Hop-garden
The length of the rectangular hop garden Mr. Smith increased by 25% and its width by 30%. What is the percentage change in the area of the hop garden?
- Retail
At what price bought the retail 1 kg goods from wholesale if lost in the distribution is 4% of the weight of the goods, and retail still have a profit of 6.3%? Goods are sold at retail for 25 euro per kg. - Clock
How many times a day do hands on a clock overlap? - Slope
What is the slope of the line defined by the equation -2x +3y = -1? - Sea water
Seawater contains about 5% salt. How many dm³ of distilled water must we pour into 39 dm³ of seawater to get water with 1.6% salt? - Monty Hall
Suppose you're on a game show and have the choice of three doors: Behind one door is a car; behind the others, goats. You pick a door, say No. 1, and the host, who knows what's behind the doors, opens another door, say No. 3, which has a goat. What is the
- Root
The root of the equation (x-10)² +4 = x² +35x is (equal or greater or less than zero). ... - VAT
John paid 1000 Euros in store for purchase. Calculate value-added tax (VAT), which is paid in the purchase, if the VAT rate is 20%. - Negative percentage
In 2006, the company had a loss of 11100 Euros. Two years later, he was already in profit 50000 Eur. Calculate what percentage of the company increased profits in these two years. - Drinking water
A man drinks a keg of water in 36 days, and a woman drinks in 65 days. How many days do they consume a keg together? - Forestry workers
56 laborers have employed planted trees in the forest. For 8 hour work, a day would end job in 37 days. After 16 days, 9 laborers go forth? How many days are needed to complete planting trees in nurseries by others if they work 10 hours a day?
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