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A fruit stall has some mangoes, apples and oranges.
The ratio of the number of mangoes to that of apples is 2:3.
The ratio of the number of apples to that of oranges is 4:5.
(a) What is the ratio of the number of mangoes to apples to oranges?
(b) After some oranges were sold, `1/5` of the remaining fruits were oranges. If 60 oranges were sold, determine the total number of fruits that the stall had in the beginning.
(c) How many oranges were there at first?
Notes to students:
- If the question above has parts, (e.g. (a) and (b)), given that the answer for part (a) is 10 and the answer for part (b) is 12, give your answer as:10,12
- If your answer is a ratio, leave it as a:b