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iOS Swift Basics Swift Operators Working With Operators

Kim Fook Lo
Kim Fook Lo
304 Points

The value assigned to isPerfectMultiple should be the result of a comparison operation

I don't understand the question step 2 on challenge 1 of 2

operators.swift
// Enter your code below
let value = 200
let divisor = 5

let someOperation = 20 + 400 % 10 / 2 - 15
let anotherOperation = 52 * 27 % 200 / 2 + 5

// Task 1 - Enter your code below
let result = value % divisor

// Task 2 - Enter your code below
Kim Fook Lo
Kim Fook Lo
304 Points

In the editor below, you have two constants - value and divisor. Step 1: Using the remainder operator, compute the remainder given the value and a divisor. Assign this value to a constant named result.

Step 2: When value obtained using a remainder operator is 0, this means that the value is a perfect multiple of the divisor. Compare the value of result to 0 using the equality operator and assign the resulting value to a constant named isPerfectMultiple.

2 Answers

Matthew Long
Matthew Long
28,407 Points

As Kim explained a perfect multiple is when you divide a number by another and the remainder is 0. So part two of the first challenge wants you to evaluate an expression of whether or not result is 0.

let value = 200
let divisor = 5

let someOperation = 20 + 400 % 10 / 2 - 15
let anotherOperation = 52 * 27 % 200 / 2 + 5

let result = value % divisor
let isPerfectMultiple = result == 0 // evaluates to true or false
Kim Fook Lo
Kim Fook Lo
304 Points

Thanks Matthew.