Question 1155758
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An easy informal solution using logical reasoning -- which follows exactly the same path as the formal algebraic solution shown by the other tutor....<br>
(1) Add 17 more boys (from a neighboring camp?) to make equal numbers of boys and girls and a total of 235+17 = 252.
(2) Half of that 252, which is 126, is the number of girls in the camp.<br>