Maths practice for 12-year-olds - page 5 of 309
Number of problems found: 6169
- The petrol tank
Tinny's car's petrol tank was full. He drove around the city and used 1/4 of the petrol. What fraction of the petrol was left? - Full tank 2
Robert has a full tank of petrol. He drove to Manly and used 1/8 of a tank and then to Gosford using another 4/8 of a tank. What fraction of a tank of petrol has he used? - Central angle 2
What is the arc length of a circle with a radius of 12 cm and a central angle of 255 degrees? A. 8.5 cm B. 12π cm C. 24π cm D. 17π cm - The meeting
Two peoples, X and Y, start walking towards each other at 8 am at the speed of 3km/h and 4km/h . They were 17.5km apart. What time do they meet.
- Three girls
Rs.1400 is divided among Amla, Bimla, and Simla so that Amla receives half as much as Bimla, and Bimla receives half as much as Simla. Then Simla's share is: - Ice-creams
Becky and Sam make 6 ice-creams for their friends. On top of each ice cream, they sprinkle 1/3 of a packet of jelly. How many packets of jelly do they need? - A restaurant’s
A restaurant’s menu has 3 appetizers, 3 mains and 2 desserts. In how many way can a 3-course meal be ordered? - Parallel sides
Area of trapezium is 45 sq cm and sum of the length of parallel sides is 15 cm. Find height of the trapezium. - A woodcutter
A woodcutter took 12 minutes to make 3 pieces of a block of wood. How much time would be needed to make 5 such pieces?
- Tailors
Find the largest number of tailors who can share either 48m or 12m of fabric equally without a reminder? - Row of students
In a row of 40 girls A is 5th from the right and B is 10th from the left end. How many girls are there between A and B? Many got it wrong! - Constant speed
At a constant speed, a train travels 45 miles in 60 minutes. At this rate, how far does the train travel in 12 minutes? - Multiply 19
Multiply 12 × 5/8, and write the result in mixed and improper fractions. - Compare offers
Which is the better offer: Three successive discounts of 10%, 10%, and 30% or Three consecutive discounts of 40%,5%, and 5%? Enter the answer as an A or B letter.
- Two cats
Sally has 2 cats. Each cat eats 1/4 of a tin of cat food each day. Sally buy 7 tins of cats food. How many days did she feed her 2 cats? Show your work. - Sum of the fractions Find the sum, express your answer to lowest terms. 1. 1/4 + 2/4= 2. 1/6 + 3/6= 3. 6/10 + 2/10= 4. ¾ + ⅛= 5. 5 3/5 + 2 ½=
- Cows and hens
In a group of cows and hens, the number of legs is 14, more than twice the number of heads. Find the number of cows. - Melting 3 cubes
The sides of the three metal cubes are 30 cm, 40 cm, and 50 cm, respectively. Find the side of the new cube formed by melting these cubes together. - When three
When three positive integers a, b, and c are multiplied together, their product is 64. Suppose a < b < c. In how many ways can the numbers be chosen?
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