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Sara, Nick and June share some sweets in the ratio 7:1:1. Sara gets 78 more sweets than June. How many sweets are there altogether?
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Sara, Nick and June share some sweets in the ratio 7:1:1. Sara gets 78 more sweets than June. How many sweets are there altogether?
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Feb 28, 2019
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Sara, Nick and June share some sweets in the ratio 7:1:1. Sara gets 78 more sweets than June. How many sweets are there altogether?
Mathematics
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Adam Kaplan
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6 units=78
1unit=78÷6=12
9 units=12×9=108
Thomas Lehoux
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Mar 2, 2019
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Thomas Lehoux
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Let's x to be number of sweets that June has, the same quantity has Nick, but Sara has 7*x, as ratio is 7:1:1.
It says, that Sara gets 78 more sweets than June, in other words: 7x=78+x or 6x=78-> x=13.
Altogether there are=7x+x+x=9x=9*13=117 sweets.
Daniel Lemire
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Mar 4, 2019
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