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# Which is greater: Sum of the integers from 1 to 40 inclusive

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Senior Manager
Joined: 20 May 2014
Posts: 282
Followers: 15

Kudos [?]: 49 [0], given: 220

Which is greater: Sum of the integers from 1 to 40 inclusive [#permalink]  04 Dec 2017, 04:54
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Question Stats:

100% (01:03) correct 0% (00:00) wrong based on 3 sessions
 Quantity A Quantity B Sum of the integers from 1 to 40 inclusive 800

A. The quantity in Column A is greater
B. The quantity in Column B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given

Kudos for correct solution.
Director
Joined: 20 Apr 2016
Posts: 762
Followers: 6

Kudos [?]: 522 [1] , given: 94

Re: Which is greater: Sum of the integers from 1 to 40 inclusive [#permalink]  04 Dec 2017, 22:09
1
KUDOS
Bunuel wrote:
 Quantity A Quantity B Sum of the integers from 1 to 40 inclusive 800

A. The quantity in Column A is greater
B. The quantity in Column B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given

Kudos for correct solution.

Here to know the sum of n numbers both inclusive is given by = $$\frac{n(n+1)}{2}$$

So here n = 40

Therefore sum =$$\frac{(40 * 41)}{2}$$ = 820.

Hence option A.
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Re: Which is greater: Sum of the integers from 1 to 40 inclusive   [#permalink] 04 Dec 2017, 22:09
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