Question

Find the number of 7’s between 100&700

Answer 1

Answer:

In 100s "19" 7s are there.

And in 700s "119" are there!

Step-by-step explanation:

1. 1st just count 1to10 how many 7s are there? just only 1 right!?

2. Means just upto 100 means we get 10 7s.

3. Now just has to add 70 to 79 again here we can get 9 7 digits.

4. So, we get "19" 7s in 100s..

1.700 means all we get 1st digit seven.

2. Means we get 100 7s.

3. Again we have to add 770 to 779.

4. Now we get 9 7s.

5. So, the total 7s in 700s is 119..