Question

The sum of $51+52+53+\dots \dots .+100$ is equal to

• A. 2775
• B. 3775
• C. 2275
• D. 1275

Answer 1

Answer: (B)

$5050-[1+2+3+\dots \dots .+50]=5050-25\cdot 51=5050-1275=3775.$