Question
The total cost of a necklace, a radio and a calculator is $261. The radio costs twice as much as the calculator. The necklace costs thrice 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 $261. The radio costs twice as much as the calculator. The necklace costs thrice as much as the radio. Find the difference in the cost between the necklace and the radio.