The ratio of the cost of a radio and tape recorder is 3:7 if the cost of a tape recorder is 3500 find the cost of radio
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Step-by-step explanation:
let cost of radio be x. ratio: 3/7=cost of radio/cost of tape recorder=x/3500
= 3/7=x/3500
= (3/7) * 3500=x
= 1500=x
so cost of radio is 1500
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