A pendulum clock is 5 seconds fast at a temperature of 15^(@)C and 10 seconds slow at a temperature of 30^(@)C. The temperature at which it gives the correct time is

A pendulum clock is 5 seconds fast at a temperature of 15^(@)C and 10

1.	A pendulum clock is 5 seconds fast at a temperature of 15^(@)C and 10 seconds slow at a temperature of 30^(@)C. The temperature at which it gives the correct time is
Answer» `18^(@) C` `20^(@) C` `22^(@) C` `25^(@) C` Answer :B