Question

a telephone number consists of six digits of which the first two are exchange numbers.find the maximum number of connections that can be given to the consumers by the exchange?
i want proper logical explanation

Answer 1

first two numbers will be filled by exchange

Answer 2

yes

Answer 3

so we have to fill only 4 numbers, since there is no choice and subjection while choosing a number.. so we have got 10 numbers to fill each position from 3rd number.

Answer 4

okay i got my logic

Answer 5

thanks for helping me

Answer 6

ohkay its fine