500
They are: 529 and 576
496.
500 squares of paper in a roll?
It is (100-15)% of 500 = 85% of 500 ir 500*85/100 = 425It is (100-15)% of 500 = 85% of 500 ir 500*85/100 = 425It is (100-15)% of 500 = 85% of 500 ir 500*85/100 = 425It is (100-15)% of 500 = 85% of 500 ir 500*85/100 = 425
100 ...121, 144, 169, 196, 225256, 289, 324, 361, 400441, 484
500
They are: 529 and 576
Perfect squares are the result of multiplying integers by themselves: 1 x 1 = 1 2 x 2 = 4 3 x 3 = 9 etc. The perfect squares, above, are the numbers to the right of the equal sign, so just continue until you pass the number 500.
It is 100
102= 100122= 144142= 196162= 256182= 324202= 400222= 484
496.
There are (500-100)/2 = 200 numbers divisible by 2 between 100 and 500 counting 100 but not 500. Of these (500-100)/8 = 50 are divisible by 8. So there are 150 numbers between 100 and 500 divisible by two but not by 8. By relative primeness exactly 50 out of these 150 are divisible by 3 and therefore these 50 are exactly the ones divisible by 6 but not by 8.
400
500
40. There are 400 numbers between 100 and 500 and one in every ten ends in 5.
500 squares of paper in a roll?