Question

On 15 May 2006 Chandran went to a shop to buy butter. He checked the packet to see if this butter was safe to eat.

It was written on the packet - 'Best before 180 days from the date of packing.'

Then he checked the date of packing. It was 15/01/06.

Help him find out if he should buy this butter or not.

1. In which month was the butter packed?
2. Which month will it be 180 days after 15/01/06?
3. Can Chandran eat it on 15th May 2006?

Answer 1

1. The butter was packed in the month of January. It was on 15th January 2006.

2. We will calculate the days from 16/01/2006.

From 16th January 2006 to 31st January 2006	= 16 days
From 1st February 2006 to 28th February 2006	= 28 days
From 1st March 2006 to 31st March 2006	= 31 days
From 1st April 2006 to 30th April 2006	= 30 days
From 1st May 2006 to 31st May 2006	= 31 days
From 1st June 2006 to 30th June 2006	= 30 days
Total	= 166 days

Now, 180 – 166 = 14 days left to be completed in 180 days So, 14 days will be completed on 14th August 2006.

Hence, in the month of August on 14th, the 180 days will be completed after manufacturing date. 

3. Yes, because 15th May 2006 falls before 14th August 2006.