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The price of a washing machine in a shop on Miller Road is the same as the price of an identical washing machine in a shop on Washington Road.
Both the shops offered a discount on the washing machine during Christmas.
As a result, the price of the machine in the Miller Road shop became $330 and that in the Washington Road shop became $310.
Robinson's family could save a total of $1240 by buying 4 such washing machines from each shop during the offer period.
By how much was the price of the washing machine knocked down in each of the shops?
(a)Miller Road shop: __________
(b)Washington Road shop:_________
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