Question

A watch lost 1 minute 18 seconds in 39 days. How many seconds did it
lose per day?

Answer 1

Answer:

It's an inverse use formulae as X1:X2::y1:y2

Step-by-step explanation:

Answer 2

It lost 2 seconds per day.

Given,

A watch lost 1 minute 18 seconds in 39 days.

To Find,

How many seconds did it lose per day

Solution,

It has been given to us that a watch lost 1 minute and 18 seconds in the time span of 39 days

Converting we get -

1 minute  = 60 seconds

Total time = 1 minute and 18 seconds

Total time = 60 seconds + 18 seconds

Total time = 78 seconds

Seconds lost per day = $\frac{78}{39}$

Seconds lost per day = 2 seconds

Hence, it lost 2 seconds per day.

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