Question

How many numbers are there between 99 and 1000 such tht the digit 8 occupies the unites place

Answer 1

Answer:

Step-by-step explanation:

108 ,118 ,128 ,138 ,.......................998

this forms an AP with common difference of 10

so, 998 = 108 + (n-1)10

  998-108 =10n-10

890+10=10n

10n = 900

n = 90 terms