Group A
(Factors & Multiples)
(Factors & Multiples)
The sounds of a bell ringing and a dog barking comes together at 10 a.m.
The bell rings at every 10 min while a dog barks every 15 min.
What time will both sounds come together again?
10.30 a.m. OR 10 30
Ali had 16 fewer erasers than Ben.
After Ben bought another 4 erasers, he had 5 times as many erasers as Ali.
How many erasers had Ali?
5
A wallet contained some $2 and $5 notes, amounting to a total of $36.
There were twice as many $5 notes as $2 notes.
How many notes were there in the wallet altogether?
9
3/11 of a pole is painted green and 5/11 of the same pole is painted blue.
The rest of the pole is painted yellow.
What fraction of the pole is painted yellow?
3/11
Keith has 1/5 as many stickers as Janet.
They have a total of 240 stickers.
How many stickers must Janet give to Keith so that they will have the same number of stickers in the end?
80
A jar contains fewer than 30 sweets.
The sweets can be shared equally among either 6 children or 9 children.
How many sweets are in the far?
18
Cindy had $50 while Diana had $29 at first
Both girls donated an equal amount to charity.
In the end, Cindy had 4 times as much money as Diana.
How much money was donated by each girl?
$22
At a game stall, each red ball stands for 2 points and each blue ball stands for 5 points.
John scored 21 points altogether after winning an number of red and blue balls.
How many red balls did John win?
3
2/9 of the people loves Horror movies and 1/3 of the people loves Comedy.
The rest of the people loves Thrillers.
What fraction of the people loves Thrillers?
4/9
280 students attended a function.
After 3/5 of the boys and 70 girls left the function, there was an equal number of boys and girls left.
How many girls were there at first?
In a queue, every 3rd person has a red band, every 4th person has a blue band and every 5th person has a green band.
What is the position of the first person who has all 3 coloured bands?
60th person
Hamid had 12 more marbles than Gopal.
When Gopal gave 9 marbles to Hamid, Hamid had 4 times as many marbles as Gopal.
How many marbles did Hamid have at first?
31
A bag of 280 sweets were distributed to a group of boys and girls.
Each boy received 2 sweets while each girl received 3 sweets.
There were twice as many boys as girls.
How many boys were there in the group?
80
2/9 of the class P4K like playing badminton and 4/9 of the class P4K like swimming.
The rest of the class P4K like playing soccer.
12 students like playing soccer.
How many students are there in the class?
36
Daniel had an equal number of erasers and pencils.
He gave away 3/4 of his pencils and 15 erasers.
In the end, he had a total of 70 stationery.
How many erasers did Daniel have at first?
68
When a number is divided by 3, the remainder is 2.
When the same number is divided by 4, the remainder is also 2.
What is the number?
14
Jane is 15 years old. Her mother is 51 years old.
How old was her mother when she was 5 times as old as Jane?
45
Mrs Tan bought 3 times as many plates as cups.
Each plate cost $3 and each cup cost $1.
Mrs Tan spent a total of $160 on the plates and cups.
How many plates did she buy?
48
James spent 3/8 of his money on some files and 1/4 of his money on some pens.
He had $6 left.
How much money did James have at first?
$16
There were a total of 140 green and blue balls in a bag.
After 2/5 of the blue balls and 28 of the green balls were removed, there were an equal number of blue and green balls left.
How many blue balls were there at first?
70
Sam had some marbles.
When he gave 4 marbles to each friend, he had 1 marble left.
When he gave 5 marbles to each friend, he needed 2 more marbles.
How many marbles did Sam have at first?
13
Box A had thrice as many balls as Box B.
Kenny removed 5 balls from Box A while Leonard puts 5 balls into Box B.
In the end, Box A had 30 more balls than Box B.
How many balls were there in Box A in the end?
55
At a party, each girl was given 2 balloons while each boy was given 1 balloon.
There were thrice as many boys as girls at the party.
250 balloons were given away to the children.
How many boys were there at the party?
150
A bag contains some coloured balls.
5/12 of the balls are red and 1/3 of the balls are blue.
The rest of the balls are yellow.
There are 12 yellow balls.
How many balls are there in the bag?
48
Tim had an equal number of cups and plates.
He gave away 2/5 of his plates and bought another 15 cups.
In the end, he had a total of 47 utensils.
How many cups did Tim have at first?
20