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A pendulum clock (fitted with a small heavy bob that is connected with a metal rod) is 5 seconds fast each day at a temperature of 15 ° C and 10 seconds slow at a temperature of 30 ° C. The temperature at which it is designed to give correct time, is?

A pendulum clock (fitted with a small heavy bob that is connected with a metal rod) is 5 seconds fast each day at a temperature of 15°C and 10 seconds slow at a temperature of 30°C. The temperature at which it is designed to give correct time, is?

Grade:12

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