Question

Jessie types at the rate of 3 pages every 20 minutes. Find the time it would take Jessie to type a 12 page essay

Please note that this is directly proportional applications and the formula is output unit/input unit times input unit

Answer 1

• 80 min or 1 hour and 20 min

Explanation:

• 3 pages ⇔ 20 min
• 12 pages ⇔ x min

Cross= multiply and solve for x:

• 3x = 12*20
• 3x = 240
• x = 240/3
• x = 80 min = 1 hour and 20 min