Asad Ullah

problems/variables.js

@@ -7,6 +7,15 @@
 //  * For example, if you were born in 1988, then in 2026 you'll be either 37 or 38, depending on what month it is in 2026.
 //  * Log them to the screen like so: "I will be either `ageMin` or `ageMax` in `futureYear`", substituting the values.
 
+// const birthYear = 1993
+// let futureYear = 3241
+// let ageMax = futureYear-birthYear
+// let ageMin = ageMax - 1
+
+// console.log("I will be either "+ ageMin + " or "+  ageMax + " in " + futureYear)
+
+
+
 // ## Problem Two
 
 // Snack Supply Calculator:
@@ -16,6 +25,17 @@
 //  * Calculate how many snacks you would eat total, from your current age until the maximum age.
 //  * Log the result to the screen like this: "You will need `snackNumber` to last you until the age of `maxAge`".
 
+// const maxAge = 30 
+// let currentAge = 28
+// let snackNumber = 4
+// console.log ((maxAge - currentAge)* 365 * snackNumber)
+
+// snackNumber = 2920 
+// console.log ("you will need "+ snackNumber +" to last you until "+ maxAge)
+
+
+
+
 // ## Problem Three
 
 // Calculate properties of a circle, using the definitions: http://math2.org/math/geometry/circles.htm 
@@ -24,6 +44,16 @@
 //  * Calculate the area based on the radius, and log "The area is `areaOfCircle`".
 //  * Hint: https://www.w3schools.com/jsref/jsref_pi.asp
 
+
+// let radius = 5
+// let Pi = (Math.PI)
+// let circumferenceResult = (2 * Pi * radius)
+// console.log ("The circumference " + "is " + circumferenceResult )
+// let areaOfCircle = (Pi * radius * radius)
+// console.log ("The area is " + areaOfCircle)
+
+
+
 // ## Problem Four
 
 // Temperature Converter:
@@ -32,6 +62,16 @@
 //  * Now store a fahrenheit temperature into a variable.
 //  * Convert it to celsius and output "`tempInFahrenheit`°F is `tempInCelsius`°C."
 
+// let tempInCelsius = 100
+// let tempInFahrenheit = tempInCelsius * 1.8 + 32
+// console.log (tempInCelsius + "°C is " + tempInFahrenheit + "°F")
+//  tempInFahrenheit = 50 
+//  tempInCelsius = ((tempInFahrenheit - 32) / 1.8  )
+// console.log ( tempInFahrenheit + "°F is " + tempInCelsius + "°C.")
+
+
+
+
 
 // ## Problem Five
 
@@ -44,6 +84,19 @@
 //  * Find the average grade of all students
 //  * Print out if Dee's grade is higher than the class average
 
+// let alicesGrade = 90
+// let bobsGrade = 80
+// let camsGrade = 85
+// let averageGrade = (alicesGrade + bobsGrade + camsGrade) / 3
+// console.log ( "The average grade is " + averageGrade )
+// let deesGrade = 95
+//  averageGrade = (alicesGrade + bobsGrade + camsGrade + deesGrade) / 4
+// console.log ( " The average grade of all the  students is " + averageGrade )
+// console.log ( " Dees grade of " + deesGrade + " is higher than the class average of " + averageGrade )
+<<<<<<< HEAD
+=======
+
+>>>>>>> e2c626cfce0b6bd6ad8f4cca48f17fb457c7d574
 // ## Problem Six
 
 // Find the last number:
@@ -53,10 +106,18 @@
 // * a = 123
 // * Output:
 // * 3
-
 // Hint:
 // Use the remainder % operator.
 
+// let a = 28
+// let output = a % 10
+
+// console.log ("The last digit of " + a + " is " + output)
+
+
+
+
+
 
 // ## Problem Seven
 
@@ -82,6 +143,21 @@
 // * alice + x = y * (bob + x)
 // * Solve for alice
 
+// const bobAge = 12
+// let futureYear = 3
+// let productAge = 2
+// let aliceAge = (bobAge + futureYear) * productAge - futureYear
+
+// console.log ("Alice age is " + aliceAge)
+
+// futureYear = 1
+// productAge = 3
+// aliceAge = (bobAge + futureYear) * productAge - futureYear
+
+// console.log ("Alice new age is " + aliceAge)
+
+
+
 // ## Problem Eight
 
 // * Cat and Dog Percentages
@@ -95,6 +171,14 @@
 // * 25% of the daycare animals are cats
 // * 75% of the daycare animals are dogs
 
+// let numberOfCats = 20
+// let numberOfDogs = 60
+// let percentageOfCats = numberOfCats / (numberOfCats + numberOfDogs) * 100
+// let percentageOfDogs = numberOfDogs / (numberOfCats + numberOfDogs) * 100
+// console.log (percentageOfCats + "% of the daycare animals are cats")
+// console.log (percentageOfDogs + "% of the daycare animals are dogs")
+
+
 // ## Problem Nine
 
 // * Leap Year Calculator
@@ -116,22 +200,35 @@
 //     let num1 = 2
 //     let num2 = 5
 //     let num3 = num1 * num2
-//     console.log(num3)
+//     console.log(num3) //'10'
 //     ```
 
+// let num1 = 2
+// let num2 = 5
+// let num3 = num1 * num2
+// console.log(num3)
+
 // b. 
 //     ```js
 //     let str = 'jel' 
 //     str += 'lo'
-//     console.log(str)
+//     console.log(str) // 'jello'
 //     ```
 
+// let str = 'jel'
+// str += 'lo'
+// console.log(str)
+
 // c. 
 //     ```js
 //     let string =  'My favorite number is ';
 //     let number = 42
 //     let sentence = string + number
-//     console.log(typeof(sentence))
+//     console.log(typeof(sentence)) // 'string'
 //     ```
 
+// let string = 'My favorite number is'
+// let number = 42
+// let sentence = string + number
+// console.log (typeof(sentence))