Question

How can find no either begin with 3 or end with 3 between 200 to 400?

Answer 1

Answer:

Step-by-step explanation:

333 is a number beginning with three and ending with three and it is also between 200 and 400

Answer 2

Answer:

All number having unit Digit 3 and hundred's digit 3, are the numbers between 200 and 400 which begin with 3 or end with 3.

Starting With 203, 213,223, ........293, 303, 313,.......353,......393.

That is 10 numbers between 200 to 300 , which have unit digit 3.

So,there are total of  20 numbers in all between 200 to 400, which have unit digit 3.

The number which begin with 3 between number from , 200 to 400 starts from , 300,301, 302,......359,......389,.....399.

So total number which begin from 3 between 200 to 400 is , number from 300 to 399.

That is, 399 -300 +1=99+1=100