Question

how many times doese 5 digit ocur in tens places from 100 to 1000

Answer 1

90 time

step -1 .

count only between 100 to 200

step -2.

you will find only 10 no. between 1 to 100

150,151,152,153,154,155,156,157,158 and

159

step -3.

now muntiply 10 to 9 because there are

9 hundreds only from 100 to 1000

step -4.

10×9=90

step -5.

ANS. = 90