Decimals & Fractions
28/9 x 3/8
1 1/6
A wheel made 96 revolutions in 12 seconds. At this rate, how many revolutions would the wheel make in 1 minute?
480 revolutions
If the perimeter of a rectangle is 252 cm, and its breadth is 14 cm, what is its length?
112 cm
Peter, Sam and Graham shared a sum of money in the ratio 13:9:10. Peter got $65. How much did Sam get?
Sam got $45
Evaluate this algebraic expression, if x = 15:
6x + 10 - 2x + 5
75
3 1/4 - 1 7/8
1 3/8
A train travelling between two stations 50 km apart arrives on time, if it travels at an average speed of 60 km/h. How late will the train be if it travels at an average speed of 50 km/h? (Answer in minutes)
10 minutes late
What is a seven sided polygon called?
A heptagon (septagon)
At IconSiam on Sunday, 3/8 of the people are women, 4/16 are men and the rest are children. What is the percentage of children at IconSiam?
37.5% are children
I have four sides and my opposite angles are equal. My sides are parallel to each other, but they are not all the same length. I don't have any right angles.
What shape am I?
A parallelogram
Prim is going on holiday with her family. Her father's bag weighs 10.45 kg, her mother's bag weighs 5 kg 250 g, and her bag weighs 2800 g. How much do all the bags weigh in total? Answer in kilograms.
18.5 kg
The Earth takes one year to go around the Sun. The distance travelled is 584 million miles if there are 365 days in a year. What speed does the Earth travel at, in miles per day?
1,600,000 miles per day
A rectangular tank of 40 cm by 30 cm by 20 cm is filled with water from a tap that flows at a rate of 4 litres per minute. How long will it take to be half full?
3 minutes
The ratio of the number of boys to the number of girls in a camp is 3:7. There are 24 boys in the camp. If the camp fee is $50 per person, find the total amount of fees the girls have to pay.
$2800 the girls have to pay
Lisa bought 5 books from a bookstore. The average price of 2 of the books is $5.20. The average price of the rest of the books is $4.80. Find the total amount of money Lisa paid for the 5 books.
Lisa paid $24.80
John's mass is 24 1/2 kg. He is 3 3/8 kg lighter than Tony. How much do they weigh altogether?
52 3/8 kg altogether
Yesterday I ran 12 kilometres in 90 minutes. How fast did I go? Answer in km/h.
8 km/h
Find the perimeter of a semi circle of a radius of 26 mm.
133.64 mm
Jason bought a pair of headphones which included VAT of 7%. The price of the headphones before VAT was $85. How much did Jason pay for the headphones?
Jason paid $90.95
The speed of light is approximately 300,000 km/s. How many kilometres is Mars from the Sun, if it takes light 12 minutes and 40 seconds to reach it?
228,000,000 km
A baker sold 3/5 of his cupcakes. He had 350 cupcakes left. How many cupcakes did he sell?
He sold 525 cupcakes.
Peter, John and Andrew were on their way to the beach. Peter drove 1/3 of the journey at a speed of 64 km/h. John took over and drove 5/12 of the journey for 20 minutes at a speed of 60 km/h. Then Andrew took over and drove the remaining of the journey.
For how many minutes did Peter drive?
Peter drove for 15 minutes
Find the shaded part of a figure which has a full circle inside a rectangle of length of 36 cm and a breadth of 18 cm.
393.66 cm2
Julie bought a fridge for $3450. She paid 3/5 of the amount in cash, and took a bank loan for the rest. She paid the loan at the end of the 1st year. The bank charged 3.5% interest for the loan. How much interest did Julie pay?
$48.30 interest
You have 6 paintings you would like to display in a row on your wall. How many different ways can you order the paintings?
720 different ways