Abbreviations used: eg P3, U1.1, Q1 refer to Conquer Problem Sums for Primary 3, unit 1.1, question 1.
P4, U1.8, Q4
There were thrice as many swimmers as non-swimmers at a swimming carnival. After 40 non-swimmers had left the carnival, there were 5 times as many swimmers as non-swimmers at the carnival. How many swimmers were there at the carnival?
P4, U2.12, Q4
In a basket, 1/3 are oranges and the rest are pears. If I give away 20 pears, there will be 2/3 as many pears as oranges. How many oranges and pears are there in the basket altogether?
P4, U2.12, Q5
Johnson had 1/3 as many red marbles as blue marbles. If he bought another 12 red marbles, he would be left with 2/5 as many red marbles as blue marbles. How many marbles did he have altogether?
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