Krutika and Natasha Exam Marking Time Ratio

What is the ratio of the time taken by Krutika and Natasha to mark exam papers?

a) 31:60

b) 60:31

c) 1:2

Answer:

The ratio of the time taken by Krutika and Natasha to mark exam papers is 31:60.

Krutika takes 31 minutes to mark the exam papers while Natasha takes 1 hour, which is equivalent to 60 minutes. The ratio of the time taken by Krutika and Natasha, expressed in the simplest form, is 31/60.

To express this ratio in its simplest form, we need to convert the time taken by Natasha to minutes since both times must be in the same unit for the ratio to be valid.

First, we convert Natasha's time in hours to minutes:

1 hour = 60 minutes

Natasha's time = 1 hour × 60 = 60 minutes

Next, we find the ratio in its simplest form by dividing both values by their highest common factor. In this case, the highest common factor of 31 and 60 is 1. Therefore, the ratio simplifies to 31:60, which can be expressed as 31/60.

In summary, Krutika takes 31 minutes while Natasha takes 60 minutes to mark the exam papers. The ratio of the time taken by Krutika and Natasha in its simplest form is 31/60.