A) 4000
B) 3775
C) 3500
D) 3475
Correct Answer: B
Solution :
Sum = 51+52+......+100 \[=\frac{50}{2}\,\,[2\times 51+(50-1)\times 1]\] \[=25\,\,[102+49]\] \[=25\times 151=3775\]You need to login to perform this action.
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