Computer scienceProgramming languagesGolangPackages and modulesStandard library

Math package

Rounding scores

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Suppose you are a teacher at a primary school and need to grade your students' exams on a scale of integer values from 0 to 10.

Since the final grade can only be an integer value, you need to create a Go program that calculates the final grade by rounding it either up or down, depending on the number of decimals of the calculated score; for example:

If the exam has 25 questions and a student has 19 correct answers, their grade will be calculated with the following formula: 19 / 25 * 10 = 7.6. Afterward, you should use the appropriate rounding function from the math package to round the grade up, if the decimals are greater than or equal >= 0.5, or down, if the decimals are less than < 0.5. Finally, print the final grade.

Sample Input 1:

25
19

Sample Output 1:

Write a program in Go

package main

import (

"fmt"

"math"

)

const Precision = 10

func main() {

// Do not change the type of the variables from 'float64' to 'int'

var totalQuestions float64

fmt.Scanln(&totalQuestions)

var correctAnswers float64

fmt.Scanln(&correctAnswers)

// Please write the grading formula within the 'score' variable below:

score := ? / ? * Precision

// What function from the math package allows us

// to either round up or down based on the decimal numbers?

score = math.?(score)

fmt.Println(score)

}

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