Maths practice for 12-year-olds - page 292 of 302
Examples and word math problems for 7th grade.Number of problems found: 6026
- Parallelogram
Calculate area of the parallelogram ABCD as shown if |AB| = 13 cm, |BC| = 99 cm and angle BAD = 100° - Segments
Which of the pairs of numbers on the number line encloses the longest segment: ... - Root
The root of the equation (x-10)² +4 = x² +35x is (equal or greater or less than zero). ... - Opposite numbers
Calculate opposite numbers (additive inverse) to given ones:
- 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. - 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? - Trams
Two trams started at the same time from the same place. One tram journey takes 30 minutes, and the second 45 minutes to its final stop. How long will the trams meet again? - Quarter circular
The wire hooked around the perimeter of the quarter-circular arc has a length of 5π+20. Determine the radius of the circle arc.
- Unknown x
If we add to the unknown number 21, then divide by 6 and then subtract 51, we get back an unknown number. What is this unknown number? - Two cars
Two cars started against each other simultaneously to journey long 346 km. The first car went 53 km/h and the second 53 km/h. What distance will be between these cars 20 minutes before a meeting? - Rope
Half of the rope used Mam for packaging, half of the rest got a son, half of the rest he took the father, and two-fifths of what remained and got a daughter. Remained 143 cm of rope. How long was the rope at the beginning? - Time
Write time in minutes rounded to one decimal place: 3 h 48 m 45 s. - Rectangle
The rectangle is 21 cm long and 38 cm wide. Find the radius of the circle circumscribing the rectangle.
- Car
A car travels 1/3 of the trip on the first day, the second day 2/5 of the trip, and leaves even 340 km for the following days. How long is the trip? - Garden
The square garden area is 2/9 of triangle garden with sides 160 m, 100 m, and 100 m. How many meters of fencing need to fence a square garden? - Bus vs. train
The bus started from point A 10 minutes before the train started from the same place. The bus went at an average speed of 49 km/h, train at 77 km/h. To point B train and bus arrived simultaneously. Calculate the train journey time if the train and bus tra - Gutter
How much metal is needed to produce 60 pieces of gutter pipes with the diameter 17 cm and length of 6 m? The plate bends add 6% of the material. - Store
One meter of the textile was discounted by 2 USD. Now 9 m of textile cost as before 8 m. Calculate the old and new price of 1 m of the textile.
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