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Multiple of 100

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Multiple of 100

by sanjana » Sat Oct 24, 2009 6:17 am
If 500 is the multiple of 100 that is closest to x and 400 is the multiple of 100 that is closest to y,which mutiple of 100 is closest to x+y?

1)x<500
2)y<400

[spoiler]OA : E[/spoiler]

Need explainations please.
Last edited by sanjana on Sat Oct 24, 2009 7:45 am, edited 1 time in total.
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Re: Multiple of 100

by life is a test » Sat Oct 24, 2009 7:33 am
sanjana wrote:If 500 is the multiple of 100 that is closest to x and 400 is the multiple of 100 that is closest to y,which mutiple of 100 is closest to x+y?

1)x<500
2)x<400

[spoiler]OA : E[/spoiler]

Need explanations please.
is statement 2 supposed to read y<400?

if so and E.

if 500 = closest 100 multiple then x must be between 450 - 549 (anything above 549 rounds up to 600 and anything below 450 rounds down to 400)

similarly y must be between 350-449.

1. insuff since 450+350 = 800 but 450 +449 rounds up to 900
2. insuff since 450 + 350 = 800 and 549+350 rounds up to 900

1 and 2 insuff since 499+399 = 898 = 900 and 450+350 = 800.

hope this helps.
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Master | Next Rank: 500 Posts
Posts: 182
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Re: Multiple of 100

by sanjana » Sat Oct 24, 2009 7:44 am
life is a test wrote:
sanjana wrote:If 500 is the multiple of 100 that is closest to x and 400 is the multiple of 100 that is closest to y,which mutiple of 100 is closest to x+y?

1)x<500
2)x<400

[spoiler]OA : E[/spoiler]

Need explanations please.
is statement 2 supposed to read y<400?

if so and E.

if 500 = closest 100 multiple then x must be between 450 - 549 (anything above 549 rounds up to 600 and anything below 450 rounds down to 400)

similarly y must be between 350-449.

1. insuff since 450+350 = 800 but 450 +449 rounds up to 900
2. insuff since 450 + 350 = 800 and 549+350 rounds up to 900

1 and 2 insuff since 499+399 = 898 = 900 and 450+350 = 800.

hope this helps.
Yes it should be y<400

Thanks!
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