# Maths practice for 9-year-olds - last page

#### Number of problems found: 295

- The MRT train

The MRT running from Taft to North Avenue has a starting velocity of 60km/hr. After a malfunction, the brakes failed, making the train run at a velocity of 80km/hr. What is the acceleration rate if the time for velocity change is 5 seconds? - Fluid

We have vessels containing 7 liters, 5 liters, and 2 liters. The largest container is filled with fluid, the others empty. Can you only get 5 liters and two 1 liter of fluid by pouring? How much pouring is needed? - A cone 3

A cone has a diameter of x cm and a slant height of y cm. A square pyramid has a base side length of x cm and a slant height of y cm. Which has the greater surface area? Explain. - Shopping trips

Luke bought some fresh produce. He picked up two oranges and three bananas. The cost of Luke's shopping was $18. Georgia also went to the same shop and bought five oranges and seven bananas. The cost of Georgia's shopping was $44. Write and solve a system - Triangle from sticks

Bob the boulder has many sticks of lengths 3.5 and 7. He wants to form triangles, each of whose edges consists of exactly one stick. How many non-congruent triangles can be formed with the sticks? - Farmers

Farmers loaded into a truck of fruit and vegetables intended for the store. Ten boxes of 5 kg pears, eight boxes of 6 kg plums, seven boxes 9 kg of carrots, and ten bags of 50 kg of potatoes. How many kilograms of fruit and vegetables are loaded in total? - Calculate 3906

Mom bought a sweater for 840 crowns, shoes for 730 crowns, and two t-shirts for 120 crowns each. Guess if 2000 CZK was enough for her purchase. Then calculate how many CK crowns the seller gave her back or she had to pay extra. - Seven-liter 80518

Happy Mom needs to measure exactly 6 liters of water. It only has a five-liter and a seven-liter container. How can a mother measure exactly 6 liters of water by gradually pouring? He doesn't care about other containers. - Clotheslines

Mommy needs six clotheslines 360 cm long. Clotheslines are sold in the length of eight meters. How many of these clotheslines must buy mom if any does not want to be connected? How much does mommy pay for the clotheslines when one piece costs 24kč? - James 5

James has a personal injury protection policy that covers each person in, on, around, or under his car for medical expenses. Each person can collect up to $50,000. James is involved in an accident, and three people are hurt. One person has $23,000 in medi - Annie

Annie had a few cents in her wallet. She bought three buns for 9 cents. Now she has 53 cents in the wallet. How many cents previously Annie had in the wallet? - Mountain climbing

Ken and his brother decided to go on mountain climbing 8 miles from their house to Mt. Daraitan at a rate of x mph (miles per hour). For the return trip, it was 2 mph faster. It took them 6 hours for the entire round trip. What is the x? - Goat, cabbage and wolf

A man once had to travel with a wolf, a goat, and a cabbage. He had to take good care of them since the wolf would like to taste a.piece of goat if he got the chance, while the goat appeared too long for a tasty cabbage. After some traveling, he suddenly - Three cats

If three cats eat three mice in three minutes, after which time 90 cats eat 90 mice? - Championship 1676

A district championship of primary school pupils took place at the athletics stadium. In athletics, they competed in four disciplines: long jump, high jump, 60m run, 400m run. Peter counted from the stands the person present in the stadium area. Seventeen

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