1.

What is the average of first 50 natural numbers?1). 12.252). 21.253). 254). 25.5

Answer»

Average of numbers = Sum of numbers/ TOTAL numbers

The numbers are 1, 2, 3, 4, 5…,50

Sum of n CONSECUTIVE TERMS = n(n + 1)/2

Sum of first 50 natural numbers = 50 × 51/2 = 1275

Average = 1275/50 = 25.5



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