Question

there is a digital lock of 3 digit digit can be from 0 to 9 I forgot its password and I take 6 seconds for entering 1 password how much time will I need to find out my password​

Answer 1

Answer:

With 3 digit we can have 1000 number i.e. 000 to 999

therefore maximum time taken to find out password will be 1000*6=6000 second

6000÷60=100 min= 1 hr 40 min