Cross Multiplication and Problem Solving

The video tutorial explains how to solve a cross-multiplying problem involving filling a pool with water. It begins by setting up fractions based on the given rates and measurements, then demonstrates the cross multiplication process. The tutorial further explains how to use long division to find the solution and concludes by verifying the result.

What is the rate at which water comes out of the hose?

• 2 inches per hour

• 1 inch per hour

• 3 inches per hour

• 2.5 inches per hour

How many inches does the pool need to be filled?

• 25 inches

• 50 inches

• 100 inches

• 75 inches

What is the first step in solving the problem using cross multiplication?

• Set up the fractions

• Subtract the fractions

• Add the fractions

• Multiply the fractions

Where should the 50 inches be placed in the fraction setup?

• On the numerator of the first fraction

• On the denominator of the first fraction

• On the denominator of the second fraction

• On the numerator of the second fraction

What operation is performed after setting up the fractions?

• Division

• Cross multiplication

• Subtraction

• Addition

What is the equation formed after cross multiplying?

• 2.5 + X = 50

• X - 2.5 = 50

• 2.5 * X = 50

• X = 50 * 2.5

What is the next step after forming the equation 2.5 * X = 50?

• Add 2.5 to both sides

• Subtract 2.5 from both sides

• Divide both sides by 2.5

• Multiply both sides by 2.5

What is the value of X after solving the equation?

• 10

• 25

• 15

• 20

What method is used to divide 50 by 2.5?

• Short division

• Long division

• Multiplication

• Subtraction

How many times does 2.5 go into 50?

• 20 times

• 15 times

• 25 times

• 18 times