Question

A clock gains 5seconds in 3minutes and was set right at 8am.what time it will show at 10pm on the same day

Answer 1

Answer:

10(7/18) pm.

Step-by-step explanation:

= > Clock gains 5 second in 3 minute.

= > Clock gains 12 x 5 seconds in 3 x 12 minute.

= > Clock gains 60 second in 36 minute.

= > Clock gains 1 minute in 36 minute.

Time gap = 12 + 2( firstly from 8 to 8 and then second 8 to 10 ).

Time gap = 14 hour.

Time gap = 14 x 60 min

= > Clock gains 1 min in 36 minute

= > Clock gains 1 / 36 min in 1 minute

= > Clock gains ( 14 x 60 ) / 36 min in 14 x 60 min

= > Clock gains ( 4 x 7 x 3 x 10 ) / ( 4 x 9 ) in 14 x 60 min

= > Clock gains 70 / 3 min in 14 hour.

= > Clock gains ( 70 / ( 3 x 60 )) hr in 14 hour.

Time according to this clock is 10 + 7 / 18 pm = > 187 / 18 pm => 10(7/18) pm

Answer 2

Answer:

⇴ Clock Gains 5 seconds in 3 minutes.

• we will Multiply both by 20 to Get the Gain time in 1 Hour.

⇴ Clock Gains (5 × 20) sec. in (3 × 20) min.

⇴ Clock Gains 100 seconds in 1 hour.

• So we can see that Clock Gains 100 seconds in 1 hours.
• Now we will find the Time that Clock has surpassed from morning.

☯ Time Gap at the Same Day :

⇢ 10 PM – 8 AM

⇢ 14 Hour

___________________

☯ Clock will Gain :

⇾ Clock Gains 100 seconds in 1 hour.

• Multiplying both by 14

⇾ Clock Gains (100 × 14) seconds in (1 × 14) hour.

⇾ Clock Gains 1400 seconds in 14 hours.

• we will change 1400 seconds in minutes. Dividing by 60.

⇾ Clock Gains 1400/60 min. in 14 hours.

⇾ Clock Gains 23 min. 20 sec. in 14 hours.

⇾ Clock Time = 10 PM + 23 min. 20 sec.

⋆ Clock Time = 10 : 23 : 20 PM

∴ Clock will show 10 : 23 : 20 PM