solving equations brain teasers Percent
50
x = 4
What is 5x-3=17
100
a map
What has cities, but no houses; forests, but no trees; and water, but no fish?
100
20
What is 20% of 100
100
x = 7
What is 3x-5= 16
200
your breath
What is harder to catch the faster you run?
200
75
What is 30% of 250
200
x = -14
What is (3+5) - 3x = 50
300
the river was frozen
A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?
300
70
What is 50% of 140
300
x = 1
What is (6x +3x) x 5 = 45
400
pencil led
I am taken from a mine, and shut up in a wooden case, from which I am never released, and yet I am used by almost everybody. What am I?
400
300
What is 75% of 400
400
x = 5
What is (5x2) + 6x = 40
500
white
I left my campsite and hiked south for 3 miles. Then I turned east and hiked for 3 miles. I then turned north and hiked for 3 miles, at which time I came upon a bear inside my tent eating my food! What color was the bear?
500
175
What is 35% of 500






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