Question 1167892
<br>
She ate 2/7 of the sweets and still had 2/7 of them left after she gave some to her brother.<br>
That means the 36 sweets she gave her brother were 3/7 of the number she started with.  (2/7 plus 2/7 plus 3/7 = 7/7 = all of them)<br>
(3/7)x = 36
x = 36(7/3) = 12*7 = 84<br>