Question

how many positive integers less than 28 are prime numbers, odd multiples of 5, or the sum of a positive multiple of 2 and a positive multiple of 4​

Answer 1

Answer:

The total positive integers in the given conditions are 23.

Step-by-step explanation:

Given:

How many positive integers less than 28 are prime numbers, odd multiples of 5, or the sum of a positive multiple of 2 and a positive multiple of 4

Solution:

(i) the positive integers less than 28 with prime numbers = [2,3,5,7,11,13,17,19,23,]

(ii) odd multiples of 5 less than 28 = 5, 10, 15

(iii) sum of positive multiple of 2 and a multiple of 4 = even numbers from 6 to 26 = $\frac{(26 - 6 )}{2}$= 20 + 1  = 11

The numbers are 9 + 3 + 11 =23.

Learn more problems in Positive integers:

Q: Find the sum of all positive integers, from 5 to 1555 inclusive, that are divisible by 5

Link: https://brainly.in/question/2901832

Q: The product of two consecutive positive integers is 306. Form the quadratic equation to find the integers, if x denotes the smaller integer.

Link: https://brainly.in/question/7785065