Abbreviations used: eg P3, U1.1, Q1 refer to Conquer Problem Sums for Primary 3, unit 1.1, question 1.
P3, U10.8, Q3
During a telematch, the number of gold medals won was 4 times the number of silver medals won. The number of bronze medals won was twice the number of silver medals won. Each medal won represents a sum of money won and the total amount of money won during the telematch was $230. Calculate the number of gold medals won.
| Type of gold medal | Amount worth |
| Gold | $4 |
| Silver | $3 |
| Bronze | $2 |
P3, U10.8, Q4
At a construction site, workers were paid a daily wage for the work they had done. Type C workers were in charge of construction works while Type E workers were In charge of electrical works. There were thrice as many Type C workers as Type E workers. Given that the daily wages of Type C and Type E workers were $30 and $50 respectively, find the number of workers at the construction site given that the total daily wages paid was $2 800.
P4, U1.14, Q5
A school paid a total of $432 for a group of pupils and their teachers for a zoo trip. The price of an adult ticket was $8 and a child ticket was $5. Given that there were 20 times as many children as adults, how many children did the school pay for the zoo trip?
P4, U1.14, Q6
During a quiz, a correct answer would be awarded 3 points while 2 points would be deducted from a participant for a wrong answer. For every 6 questions answered, Jane managed to get 5 of them correct. Given that Jane earned a total of 104 points, how many questions did Jane answer correctly?
P5, U1.5, Q4
At a school funfair, every girl is given 3 packet drinks and every boy is given 5 packet drinks. There are thrice as many girls as boys who were at the funfair. Given that a total of 350 packet drinks were given out, how many boys were at the funfair?
P5, U1.5, Q6
A bolster costs $25. A pillow costs twice as much. Mr Ho paid $700 for some bolsters and pillows. He bought thrice as many pillows as bolsters.
(a) How many pillows did he buy?
(b) How much more money did he spend on the pillows than the bolsters?
P5, U2.9, Q2
P5, U2.9, Q6
At a recent funfair, a total of 1 520 coupons were given out. Each adult received 5 coupons, each boy received 4 coupons and each girl received 3 coupons. Given that 1/4 of the people who attended the funfair were adults, 2/5 of the remainder were boys and the rest are girls, how many adults were there at the funfair?
P5, U3.6, Q3
Mdm Tan's shop sold plates and cups. The ratio of the price of a plate to that of a cup was 3:2. The price of a plate was $3 more than that of a cup. Mdm Tan sold 4/7 of the items in the first month and collected $2850 from the sales. The ratio of the number of plates sold to the number of cups sold was 3:5.
(a) Find the total number of plates sold in the first month.
(b) Find the total number of items left after the first month.
