Only 15^2 falls between 200 and 250.15^2 = 225.
Between 2,827 and 2,829
300
25 < 30 < 36 so that 52 < 30 < 62 196 < 200 < 225 so that 142 < 200 < 152 So the squares of the numbers 6, 7, ... 14 are the required numbers.
1,4,9,16,25,36,49,64,81,100,121,144,169,196.
Only 15^2 falls between 200 and 250.15^2 = 225.
1166650
There are 33 such numbers.
Between 2,827 and 2,829
300
25 < 30 < 36 so that 52 < 30 < 62 196 < 200 < 225 so that 142 < 200 < 152 So the squares of the numbers 6, 7, ... 14 are the required numbers.
There are ten such numbers.
√200 lies between 14 and 15.
27
There are 200 whole numbers and many more fractional numbers that are between 3460 and 3660. The number that is halfway between them in 3560.
The sum of the whole numbers that are divisible by three and which lie between 100 and 200 is 4950.
1,4,9,16,25,36,49,64,81,100,121,144,169,196.