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80-6(36+9)/1/4
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dimochka
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The way to solve it is to follow order of operations. I've detailed out each step below.
36 + 9 = 45
6(36 + 9) = 6 * 45 = 270
6(36 + 9)/1 = 270 / 1 = 270
6(36 + 9)/1/4 = 270 / 4 = 67.5
80 - 6(36 + 9)/1/4 = 80 - 67.5 = 12.5
36 + 9 = 45
6(36 + 9) = 6 * 45 = 270
6(36 + 9)/1 = 270 / 1 = 270
6(36 + 9)/1/4 = 270 / 4 = 67.5
80 - 6(36 + 9)/1/4 = 80 - 67.5 = 12.5
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Hi stephny,
I think that dimochka may have misinterpreted something that you wrote. The "intent" of this calculation would be clearer if you used parenthesis or brackets to separate the numbers. I think that the actual equation is supposed to be this:
80 - 6(36+9) / (1/4)
Then the steps would be:
80 - 6(45) / (.25)
80 - 270 / .25
80 - 270(4) / (.25)4
80 - 1080 / 1
80 - 1080
-1000
GMAT assassins aren't born, they're made,
Rich
I think that dimochka may have misinterpreted something that you wrote. The "intent" of this calculation would be clearer if you used parenthesis or brackets to separate the numbers. I think that the actual equation is supposed to be this:
80 - 6(36+9) / (1/4)
Then the steps would be:
80 - 6(45) / (.25)
80 - 270 / .25
80 - 270(4) / (.25)4
80 - 1080 / 1
80 - 1080
-1000
GMAT assassins aren't born, they're made,
Rich
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theCodeToGMAT
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theCodeToGMAT
- Legendary Member
- Posts: 1556
- Joined: Tue Aug 14, 2012 11:18 pm
- Thanked: 448 times
- Followed by:34 members
- GMAT Score:650
The Red part should have been = (270) * 4 = 1080dimochka wrote:The way to solve it is to follow order of operations. I've detailed out each step below.
36 + 9 = 45
6(36 + 9) = 6 * 45 = 270
6(36 + 9)/1 = 270 / 1 = 270
6(36 + 9)/1/4 = 270 / 4 = 67.5
80 - 6(36 + 9)/1/4 = 80 - 67.5 = 12.5
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