Question

how many three digits number are divisible by 4 and sum of these numbers​

Answer 1

Answer:

The smallest 3-digit number divisible by 4 is 100 while the largest is 996.

The sum of all 3-digit number divisible by 4 is an exercise in an AP.

a = 100, d = 4,

996 = a+(n-1)d = 100 + (n-1)*4, or

249–25 = 224 = (n-1)

n = 225

S225 = (225/2)[2*100 + (225–1)*4]

= (225/2)[200+ 896]

= (225/2)*1096

= 12330o.

Answer :123300.

Answer 2

Answer:

225 Three

Answer Expert Verified

The first three digit number which is divisible by 4 = 100 . Now, Number of numbers completely divisible by 4 = 249 - 24 = 225 . Therefore, 225 Three digit numbers are completely divided by 4 .