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If set Q consists of all three digit numbers divisible by 4, what is

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If set Q consists of all three digit numbers divisible by 4, what is  [#permalink]

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New post 15 Oct 2017, 10:42
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A
B
C
D
E

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Question Stats:

69% (01:53) correct 31% (02:21) wrong based on 42 sessions

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If set Q consists of all three digit numbers divisible by 4, what is the mean of the set?

(a) 498
(b) 499.5
(c) 548
(d) 549.5
(e) 550

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Re: If set Q consists of all three digit numbers divisible by 4, what is  [#permalink]

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New post 15 Oct 2017, 11:00
3 digit numbers divisible by 4 range from 100 to 996.
Mean = Average of 1st and last term = (100+996)/2=1096/2=548
Answer C.
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Re: If set Q consists of all three digit numbers divisible by 4, what is  [#permalink]

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New post 15 Oct 2017, 18:45
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Set Q divisible by 4= 100,104........996.
In evenly spaced set
Average of Set= \(\frac{1st- term+Last- term}{2}\)

= \(\frac{100+996}{2}\)

= 548

Answer: C.

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Re: If set Q consists of all three digit numbers divisible by 4, what is &nbs [#permalink] 15 Oct 2017, 18:45
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