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#1 2015-05-23 05:36:37

hasnain
Administrator
From: Chichawatni
Registered: 2014-10-13
Posts: 8,355
Website

Natural Numbers:

Question:
The sum of first 49 natural numbers is:

Option A):
1225
Option B):
1500
Option C):
2450
Option D):
None

Correct Answer is Option A):
1225

Explanation:
Sum = n * (First + Last) / 2
Sum = 49 * (1 + 49) / 2
Sum = 49 * 50 / 2
Sum = 2450 / 2
Sum = 1225


Failure is the first step towards seccess.

2015-05-23 05:36:37

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Re: Natural Numbers:



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