Question

find 3 consequtive natural numbers such that the sum of one third of the first and one fourth of the second and one fifth of the third is atmost 25

Answer 1

let the numbers be x-1,x,x+1
$(x - 1) \div 3 + (x \div 4) + (x - 1) \div 5 \leqslant 25$
just solve this......