Maths practice for 11-year-olds. - page 169 of 224
Number of problems found: 4466
- Population 5039
Each Martian has 1,2,3 feeler on his head 1 feeler = 2% of the population 2 antennae = 97% of the population 3 tentacles = 1% of the population What percentage of Martians have more antennae on their heads than the population average? - Services 5038
At the camp, half of the boys went on a trip one day, a third went swimming, and 17 boys had various services. How many boys were there in total at the camp? How many boys were on the trip, and how many were swimming? - Inspectors 5037
Five inspectors will catch an average of 70 black passengers in 6 days. How many black passengers are caught by nine inspectors in 10 days? - Crown coins
Jana saves two-crown and five-crown coins. She has 32 coins in the cashier. How many two crowns and how many five crowns would she have if she saved 145 crowns? - Basement 3
A new construction of a family house is to have a basement. The floor, walls, and ceiling of the basement are to be covered with an asphalt insulating layer. The ground plan of the family house has dimensions of 10m and 12m. The height of the basement inc - Construct 5029
Try to construct the MNP triangle. p = 6cm, n = 5cm, Vp = 4cm Answer the measured side length m - Product of two fractions
The product of two fractions is 9 3/5. Suppose one of the fractions is 9 3/7. Find the other fraction. - Milk bill
If Mrs. Tara buys 2 liters of milk daily, and 1 liter costs $0.27, what will be her milk bill for 30 days? - Rhombus EFGH
Construct the rhombus EFGH where e = 6.7cm, height to side h: vh = 5cm - Princess
Princess has lost 321 beads, and Prince George is trying to find them. On the first day, he found all but 83 beads. On the second day, he found 68 beads. He found the rest on the third day, but the Princess lost 76. How many beads did Princess have after - Eq1
Solve equation: 4(a-3)=3(2a-5) - Pie II
Vili ate three pieces of pie. If the piece is 1/8, how much pie did he eat? - Fewer than 500 sheep,
There are fewer than 500 sheep, but if they stand in a double, triple, quadruple, five, and sixth-order, one sheep will remain. But they can stand in the seventh order. How many sheep? - Kilograms 4994
The janitor is to paint the computer room walls, which are 7 m long, 5 m wide and 3 m high. The classroom has four square windows with a length of 1 m and a door 1 m wide and 2 m high. At least how many kilograms of paint should he buy if 1 kg of paint pa - Length 4992
The part is 230 meters long. What will its image length be on the plan at a scale of 1:2500? - Salad
We need two-tenths kg of a carrot, one-tenth of peas, and three-tenths tomatoes to make a salad. Express the fraction of the weight of the vegetables to be salad. Convert the result to grams. - The tank
The tank has 1320 liters of water and is shaped like a prism. Its base is a rectangle with sides a = 0.6 m and b = 1.5 m. How high is the water level in the tank? - Juice box
The juice box has a volume of 200 ml, and its base is an isosceles triangle with sides a = 4,5cm and a height of 3.4 cm. How tall is the box? - LCM of two number
Find the smallest multiple of 63 and 147 - Stones in aquarium
In an aquarium with a length of 2 m, a width of 1.5 m, and a depth of 2.5 m is a water level up to three-quarters of the depth. Can we place stones with a volume of 2 m³ into the aquarium without water being poured out?
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