Question

By observing the above pattern
50+51+52....+100​

Answer 1

Answer:

Answer is 3775.

Step-by-step explanation:

.For finding this, we will find the sum of first 100 natural numbers and then subtract the sum of first fifty natural numbers from it. Sum of first N natural numbers ={ N(N+1) }/2.  

Sum of first 100 natural numbers = (100×101)/2 = 50×101 = 5050........(i)

Sum of first 50 natural numbers = (50×51)/2 = 25×51 = 1275.........(ii)

Subtracting (ii) from (i)

we get..    3775

Answer 2

Step-by-step explanation:

I HOPE IT'S HELPFUL ..........