A pendulum clock is 5sec fast temperature of 15-oC and 10sec slow a temperature of 30-oC- At temperature does it give the correct time-18-oC20-oC22-5-oC25-oC

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A pendulum clock is $5$ sec fast at temperature of $15^{o} C$ and $10$ sec slow at a temperature of $30^{o} C$ . At temperature does it give the correct time-
$18^{o} C$
$20^{o} C$
${22.5}^{o} C$
$25^{o} C$

20^{o} C

{22.5}^{o} C

18^{o} C

25^{o} C

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A pendulum clock is 5sec fast at temperature of 15oC and 10sec slow at a temperature of 30oC. At temperature does it give the correct time-18oC20oC22.5oC25oC

A pendulum clock is $5$ sec fast at temperature of $15^{o} C$ and $10$ sec slow at a temperature of $30^{o} C$ . At temperature does it give the correct time-
$18^{o} C$
$20^{o} C$
${22.5}^{o} C$
$25^{o} C$