Nazira Posted April 29, 2021 Report Share Posted April 29, 2021 A girl has buttons to give away. She gives 1/4 + 10 to Suzie. From what’s left, she gives 1/5 + 10 to Carol. Then she gives 1/2 of what’s left +10 to Nancy. She keeps 5. How many buttons did she start with ? Quote Link to comment Share on other sites More sharing options...
0 Fribekk Posted April 30, 2021 Report Share Posted April 30, 2021 80 Quote Link to comment Share on other sites More sharing options...
-1 Donald Cartmill Posted May 1, 2021 Report Share Posted May 1, 2021 Started with 760 buttons; Problem is solved by working backward. X/2 -10 = 5 X - 20 = 10 , X = 30. X/5 -10 =30 ; X - 50 =150 X = 200 X/4 -10 =200 X -40 = 800 X = 760 Quote Link to comment Share on other sites More sharing options...
1 rocdocmac Posted May 9, 2021 Report Share Posted May 9, 2021 Sent this via email on 30 April Spoiler 80 started with ... (1) 80-20-10 = 50 (2) 50-10-10 = 30 (3) 30-15-10 = 5 Quote Link to comment Share on other sites More sharing options...
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Nazira
A girl has buttons to give away. She gives 1/4 + 10 to Suzie.
From what’s left, she gives 1/5 + 10 to Carol.
Then she gives 1/2 of what’s left +10 to Nancy.
She keeps 5.
How many buttons did she start with ?
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