From the pie chart, original shares: Gladys = 25 sweets, Nelly = 12 sweets, Mercy = 3 sweets.<br>
Total = 40 sweets.<br><br>
Gladys gave 7 sweets to Mercy.<br>
New shares:<br>
&bull; Gladys = 25 &minus; 7 = 18<br>
&bull; Nelly = 12 (unchanged)<br>
&bull; Mercy = 3 + 7 = 10<br><br>
New ratio Gladys : Nelly : Mercy = 18 : 12 : 10.<br>
Simplify by dividing by 2: 9 : 6 : 5.<br><br>
Check: Gladys originally had \( \frac{25}{40} = \frac{5}{8} \) of the sweets. &check;<br><br>
Final Answer: 9 : 6 : 5