Question
PSLE
There are 21 tarts in a box. 15 of them are salted caramel tarts while the rest are mango ones. What is the ratio of the number of mango tarts to that of salted caramel tarts in the box?
1 m

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PSLE
There are 21 tarts in a box. 15 of them are salted caramel tarts while the rest are mango ones. What is the ratio of the number of mango tarts to that of salted caramel tarts in the box?