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1 Chris buy 5 pencils need 0.6 dollars, how much money if buy 16 pencils?
2 A factory, originally need 3.2 liter water to make a bread. After improved the process, now only need 2.8 liter water for one bread. So for the amount of water we could make 791 bread originally, now how many bread the factory can make?
3 Two classes, A and B. they have 98 students all together, and class A has 6 students more than class B. How many students in class A and B individually?
4 Eric has some Chocolates, black and white colors. the total is 248. the black Chocolates is 3 times more than the white ones. How many black ones and white ones?
5 Chris has some Chocolates, black and white colors. the black Chocolates is 3 times more than the white ones. And the black ones is 124 more than white ones. How many black ones and white ones?
6 100kg wheat can make 40kg flour, now we have 3700kg wheat, so how many flour can be made from them?
7 There are 392 km distance if travel from Toronto to Montreal. One boat A start from Toronto and towards Montreal; another boat B start at the same time from Montreal to Toronto. the speed of boat A is 28 km/hour; the speed of boat B is 21 km/hour. How many hour after they can meet on the river?
8 A car can run 120km/hour. A bicycle can run 75km/hour. If we let the bicycle first run 12 hours, then the car start to catch up with, how long time the car can catch the bicycle?
9 A field is 136 meters long. Chris plant tree every 2 meters on it. Also need to make sure trees at the start and the end. So how many trees Chris need to plant?
10 A father is 35 years old, and his son is 5 years old this year. how many time the father is older than his son for this year? how many time the father is older than his son in a year after?
11 From location A to location B, the distance is 320km. A boat travel along the water will take 8 hours. We know the water speed is 15km/hour, so how long will need if the boat travel back? (the boat will need to travel against the current)
12 There is a tunnel, it is 2400 meters long. A train drive through the tunnel with speed of 900 meters/min. From the front of the train get in until the tail of the train leave the runnel, it took 3 mines. How long the train is?
13 Looking at the clock, start from the hour arm pointing to 4 clock. After how much mins, the hour arm and the min arm can be cross together?
14 Some apples need to share with a group of kids. when Chris gives each kid 3 apples, remine 11 apples; when Chris gives each kid 4 apples, he needs one more apple. How many apples Chris have?
15 To build a wall, Eric need 10 days to complete it. Chris need 15 days. If Eric and Chris working together to build it, how many days needed?
16 Eric walk from A to B. After a while, the trip he completed is 1/3 over un-completed. Then he continue walks for another 300 meters, now what he has completed is 1/2 over un-completed. How long from A to B?
17 Chris needs to share 560 cookies to 3 classes. Class one has 47 kids; Class two has 48 kids; Class three has 45 kids. How many cookies each class can get?
18 MayMay has some dog food. She ate 720kg, and 6480kg left over. how much percent she ate and how much percent of her left over comparing the original?
19 We have a field to growing vegetable for ducklings. 10 ducklings can eat up all vegetable in 20 days. or 15 ducklings can eat up all vegetable in 10 days. Knowing before ducklings eat up, the filed still can grow up certain amount of vegetable everyday. So if we have 5 ducklings, how many days they can eat up all the vegetables?
20 Some Chickens and Rabbits are in a cage. we Chris can see 35 heads in total and 94 feet in total. So how many chickens and how many rabbits?
21 Eric is selling a book. he setup a price at the 1st week. then he increase the price for 10% at the 2nd week, at the 3rd week, he decrease 10% of the price. So what's the changes of Eric's selling price at the 3rd week?
22 Eric borrowed 1200$ from Chris, and the interest is 0.8% every month. When the time comes, Eric paid back Chris 1488$. So how many month Eric carrying the loan?
23 Chris has syrup with 16% concentration and weight 50g. If Chris want turn his syrup into 10% concentration, how much water he need to add? If Chris want turn his syrup into 30% concentration, how much sugar he need to add?
24 Hartman PS has 366 kids who was born in 2014, so at least how many kids were born at the same day?
25 Chris has a rectangle board, which is 60cm * 56 cm. now Chris needs to cut it into squares, and all the squares has to have the same size and no left over un-cut board. So what's the size of the square?
26 Daddy bake cakes. Daddy has to bake 2 sizes, each size need for 3 mins and the oven can only bake 2 cakes at a time. So if daddy need to bake 3 cakes, at least how many mins he needs?
37 Eric and Chris have 90$ in total. The money Eric has is 2 time of Chris' money but with 30$ less. So how much money Eric has and how much money Chris has?