Two clocks are set right at 10 am. One gains 20 seconds and the other loses 40 seconds in 24 hours. What will be the true time when the first clock indicates 4 pm on the following day?

• 3 : 59 2521 pm 4321
• 3 : 31 1 pm 471
• 3 : 59 7 pm 12
• 3 : 57 2521 pm 4321