Question

Your wall clock gets slower by 2 minutes everyday from 12AM on Monday. However, from Monday in the following week, it gets faster by 5 minutes from 12AM. When does the clock display the correct time?

a) Wednesday at 11:59AM
b) Wednesday at 1:15PM
c) Tuesday at 11:59AM
d) Tuesday at 3:10PM​

Answer 1

Answer:

a

Step-by-step explanation:

Answer 2

Solution :-

→ Clock losses in 24 hours = 2 minutes .

and,

→ Clock gains from next monday = 5 minutes .

So,

→ Distance covered by clock = 2 + 5 = 7 minutes { Assume this distance as on number line from (-2) to 5. }

→ Time taken by clock = 24 * 7 = 168 hours .

then,

→ Clock covered 7 minutes in = 168 hours

→ Clock covered 1 minute in = (168/7) hours

→ Clock covered 2 minutes in = (168/7) * 2 = 48 hours .

Therefore,

→ Clock display the correct time = 12AM monday + 48 hours = 12AM wednesday .

since it gets slower by 2 minutes at 12 AM , it shows correct time one minute before that .

Hence, the clock display the correct time at (a) Wednesday at 11:59AM .

Learn more :-

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*घड़ी में क्या समय होगा, यदि दिया गया है कि घड़ी की दोनों सुइयों के बीच बना कोण अधिक कोण है?*

1️⃣ 1:10

2️⃣ 4:25

3️⃣ 5:50

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