It is less than 300. the ones digit is four times the hundreds digit. the tens digit is five more than the hundreds digit. the sum of the digits is 17.

Step-by-step explanation:

let the numbers at unit,ten and hundred place be x,y,z respectively,then number=100z+10y+x

also x=4z

y=z+5

and x+y+z=17

4z+z+5+z=17

6z=17-5=12

z=2

y=2+5=7

x=2×4=8

number=100×2+10×7+8=278

2 over 5 and 4 over 15

don’t know last one sorry

step-by-step explanation: