What is the sum of natural numbers between 50 and 100 Choose one:
A) 4800 B) 4860 C) 3825 D) 5500 E) 5550
a = first number   l = last number   Sn = n/2[a + l]   between 50 and 100 numbers = 51 =&gt; 100 - 50= 
<gadget id="calculator">100 - 50</gadget>
<output>50</output>
50 + 1= 
<gadget id="calculator">50 + 1</gadget>
<output>51</output>
51   Sn= 51/2 Ã— 150 = 51 Ã— 75 = 3825   Answer : 3825
<result>C</result>
What is the sum of natural numbers between 50 and 100