total even nuber three digit from 1 to 1000
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Answered by
1
Answer:
Step-by-step explanation:
500
Answered by
1
Answer:
450
Explanation [A.P. Method]:
The three digit even numbers from 1 to 1000 form an A.P.:
100, 102, 104, ..., 998.
Here, a = 100, d = 2 and tn = 998
tn = a + (n - 1) d
998 = 100 + (n - 1) 2
998 - 100 = 2n - 2
898 + 2 = 2n
900 = 2n
2n = 900
n = 900/2
n = 450
450
Explanation [A.P. Method]:
The three digit even numbers from 1 to 1000 form an A.P.:
100, 102, 104, ..., 998.
Here, a = 100, d = 2 and tn = 998
tn = a + (n - 1) d
998 = 100 + (n - 1) 2
998 - 100 = 2n - 2
898 + 2 = 2n
900 = 2n
2n = 900
n = 900/2
n = 450
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