Question

A clock was reading the time accurately on Tuesday at noon. On Thursday at 3pm the clock was running late by 612 seconds. On average, how many seconds did the clock skip every 30 minutes

Answer 1

The clock skip 10 seconds in every 30 minutes

Data;

• Tuesday at noon = 12:00
• Thursday = 612s late.

How many seconds late?

The number of seconds that the clock skipped in every 30 minutes can be calculated by finding the total number of 30 minutes present from Tuesday till Thursday 3pm.

Total number of hours present is

$t = ((24 * 2)* 60) + 3* 60 = 2880 + 180 = 3060min$

We have a total of 3060 minutes from Tuesday noon to Thursday 3pm

Let's divide 3060 by 30

$\frac{3060}{30}= 102$

Multiply 102 by 60 to convert it to seconds and divide it by 612

$\frac{102*60}{612} = 10$

The clock skip 10 seconds in every 30 minutes

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