1 + 2 + 3 + 4 + ... + 50 =A1000B5000C1250D1275Answer: D. 1275 Read Explanation: ആദ്യത്തെ n എണ്ണൽസംഖ്യകളുടെ തുക = n(n+1)/2 = 50 × [51/2] = 1275 Read more in App