The answer is: " 975 girls " . ___________________________________________________ Explanation: ___________________________________________________ What is 65% of 1500? ___________________________________________________ 65/100 * 1500/1 = ? ;
The two "zeros" in "100" cancel out; and the two "zeros" in "1500" cancel out; ____________________________________________________ And we are left with: ____________________________________________________ 65/1 * 15/1 = 65 * 15 = 975 girls. _____________________________________________________ OTHER METHOD: _____________________________________________________ 65% of 1500 = 65/100 * 1500 = 0.65 * 1500 = 975 girls. _____________________________________________________ OTHER Method: _____________________________________________________ 65% of 1500 = 65/100 * 1500 ;
Note: 65/100 = (65÷5) / (100÷5) = 13/20;
13/20 * 1500 = 13/20 * 1500/1 = ? ;
The "zero" in "20" cancels out; and the last zero in "1500" cancels out;
and we have: 13/2 * 150/1 ;
The "2" cancels to a "1" ; and the "150" cancels to a "75";
and we have: 13/1 * 75/1 = 13 * 75 = 975 . ______________________________________________