Problema Solution
How many positive integers less than 1000 are multiples of 5 and are equal to 3 times an even integer?
PS : Please! provide the most efficient process.
Answer provided by our tutors
Every number that is multiple of 5 and is equal to 3 times an even integer can be written as:
5*3*2*x, where x is integer, x>0
The number need to be less than 1000:
30x <= 1000 divide both sides by 30
x <= 1000/30
x <= 33.33
x < 34
For every integer x that is smaller then 34 the numbers 30x satisfy the given condition. Thus there are 33 such numbers.