Question
The total cost of a necklace, a radio and a calculator is $205. The radio costs four times as much as the calculator. The necklace costs nine times as much as the radio. Find the difference in the cost between the necklace and the radio.
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The total cost of a necklace, a radio and a calculator is $205. The radio costs four times as much as the calculator. The necklace costs nine times as much as the radio. Find the difference in the cost between the necklace and the radio.