How many passwords are possible with such a lock? Class 8

How many passwords are possible with such a lock? Class 8

Question 1.

How many passwords are possible with such a lock? Class 8

Sol.

26 × 26 × 26 × 26 × 26 × 26 = 26⁶, because total letters = 26.

Question 2.

Think about how many combinations are possible in different contexts. Some examples are — Class 8

(i) Pincodes of places in India — The Pincode of Vidisha in Madhya Pradesh is 464001. The Pincode of Zemabawk in Mizoram is 796017.

(ii) Mobile numbers.

(iii) Vehicle registration numbers.

Try to find out how these numbers or codes are allotted/generated.

Solution:

Note. Do as directed.