Question
Mathematics Question on Straight lines
If [x] denotes the greatest integer x, then [23]+[23+199]+[23+299]+…..+[23+9899]is equal to
A
(A) 99
B
(B) 98
C
(C) 66
D
(D) 65
Answer
(C) 66
Explanation
Solution
Explanation:
[23+r99]={0x<331r≥33∴∑r=028[23+r99]=∑r=032[23+r99]+∑r=3398[23+r99]=0+66=66