Maths practice for 14 year olds - page 177 of 362
Number of problems found: 7229
- Column rope length
The column is fixed in a vertical position by 3 ropes, which are caught at the height of 3 m above the ground. The other ends of the ropes are anchored to the ground at a distance of 4 m from the base of the column. How much rope was used to secure the po - Rake tree distance
Emma was raking leaves in the garden. During lunch, she leaned the 170 cm long rake against a tree, with the upper end reaching a height of 90 cm. How far from the tree was the bottom of the rake? Enter the result in whole centimeters. - Aircraft altitude calculation
Radar sees an aircraft at an altitude angle of 15°24', and the direct distance from the radar is 5545 m. At what altitude does the aircraft fly? - Average speed
A car traveled from city A to city B at a speed of 40 km/h, then from B to C at 60 km/h, and finally from C to D at 50 km/h. Calculate the car's average speed over the entire route from A to D if the distance from A to B is 20% of the total distance and f - Average speed
The average speed of a good cyclist is 30 km/h. The average speed of the less able is 20 km/h. They both set off on the same route at the same time. A good cyclist drove it 2 hours earlier. How long was the route? - Trapezoid circuit area
A right-angled trapezoid has parallel sides of 9 cm and 50 mm, and the shorter leg is 3 cm long. Calculate the perimeter and area. - Penalty daily
John was to pay CZK 1,500. If he does not pay on time, he will be charged a penalty of 0.5 permille of the amount owed for each day of delay. He will remember in 30 days. How much is the penalty? - Bus people distribution
There are 39 people on the bus. There are 11 more adults than children. How many children are on the bus, and how many adults? - Sibling savings calculation
Two siblings, Eve and Peter, saved a total of 228 CZK. Eve saved three times more than Peter. How much did each of them save? - Mushroom drying calculation
When dried, mushrooms lose 80% of their weight. How many fresh mushrooms do we need to get half a kilogram of dried ones? - Tiles
The tile is square and has a side of 15 cm. What dimensions can a rectangle composed of 90 tiles have so that no tile remains? - Unknown number percentage
The number 290 is 16% larger than the unknown number. What's the unknown number? - Cone volume surface
Height 9 cm diameter 24 cm cone - calculate its volume and surface. - Prism height calculation
The 4-sided prism has a volume of 648 cubic cm. The trapezoid, its base, has the dimensions a-10 cm, c-8 cm, h-6 cm. Calculate the height of the prism - Land area calculation
On the map, at a scale of 1:400 m and an area of 100 cm². How much are you interested in this land? - Exhibition visitor calculation
During 3 days, 2870 people went to the exhibition. On the second day, 140 more people came to the exhibition than on the first day. On the 3rd day, there were 1.5 times more people at the exhibition than on the second day. How many people visited the exhi - The bakery
The bakery delivered 60 kg of bread to the store. The bread weighed 1 kg and 2 kg, a total of 35 pieces. How many loaves weighed 1 kg, and how many were two-kilo loaves? - Pavel 3 Pavel has deposits in two accounts: one in a current account with an annual interest rate of 2% and the other in a savings account with an annual interest rate of 4%. Together, both deposits earned him 1,000 CZK per year. If Pavel swapped the deposits bet
- Defective bulbs
Of the 1,500 light bulbs produced, 21 were defective. What percentage of light bulbs were flawless? - Currant bush planting
Gardeners planted 16% more currant bushes than initially planned. They planted a total of 145 shrubs. What was the original plan?
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