## Tuesday, September 8, 2009

### Solve it - Question 5

Dear All

Try this question:

The time on electronic digital watch is 11 : 11. How many minutes before this would the watch have shown a time with all digits identical?

Here is the Solution:

The required digits on the clock before 11:11 would be 5:55 (Note that times like 6.66, 7.77 are not possible).
This gives a time difference of 316 minutes (11 : 11 – 5.55).

1. Is it 671 minutes before that the watch must have shown 00:00
I hope I'm correct !

2. sorry.. but this is not the correct answer... try again.

3. Is it 316 minutes?

4. Den i thnk it can b 529 min since its a digital wach and hence it'll also show 22:22
But 1 thing iz dat 22:22 hours'll b after 11:11 \$ d tym wen it'll hav ol d digits identical will only be 00:00
oly dez 3 posibilityes r der 4 identical digits- 00:00, 11:11, 22:22
i thnk dis tym i'm correct.... :) !

5. well done, rachita.. it is 316 min.

### NUMBER OF TRAILING ZEROES IN A PRODUCT (PART -2)

Dear all, Please do watch my latest video (dated 10-01-2021) on the topic “NUMBER OF TRAILING ZEROES IN A PRODUCT (PART -2)” VIDEO LINK HERE...