Question

Find the number of even numbers which have 3 digits?

Answer 1

Step-by-step explanation:

100 is the first digit

998 is the last digit

anth =a + (n-1)d

998=100 + ñ-1)2

998=100+2n-2

998=98+2n

998-98=2n

900=2n

450=n

answer is 450

450 number of even numbers which have 3 digits

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Answer 2

Answer:

total 3 digit nos are 100-999 then

999 - 100 = 899

899 - 1 = 888

888/2=444