Abbreviations used: eg P3, U1.1, Q1 refer to Conquer Problem Sums for Primary 3, unit 1.1, question 1.
P3, U4.2, Q2
Tommy wanted to buy some files. Each file cost $4 and he needed $9 more to buy 8 of such files. How much money did he have?
P3, U4.2, Q6
Jeremy brought a sum of money to buy some pencils. If he buys 4 pencils, he would be left with $2. If he buys 5 pencils, he would need another $1.
(a) How much is the cost of a pencil?
(b) How much money did Jeremy have at first?
P3, U4.2, Q7
Kevin brought a sum of money to buy some erasers. If he buys 4 erasers, he would be left with $1. If he buys 8 erasers, he would need another $3.
(a) How much is the cost of an eraser?
(b) How much money did Kevin have at first?
P3, U5.4, Q2
Palm trees were planted at an equal distance of 1 m 40 cm along a road. How far is the distance between
(a) the 1st tree and the 10th tree?
(b) the 1st tree and the 20th tree?
P3, U5.4, Q4
At sunrise an ant began jumping up a 3-metre sand hill. Every hour, it was able to climb up 50 cm, but then slid back 20 cm due to the loose sand. How long did it take the ant to reach the top?
P3, U5.4, Q5
A ball is dropped from a height of 120 cm. Every time it hits the ground, it will rebound to half of its original height. What is the total distance the ball has traveled by the time it hits the ground for the 4th time?
I need solutions on P4 sylabus!
