Real-World Application of Ratios and Rates

This video tutorial covers solving equivalent ratio problems through various examples. It includes calculating costs for vinegar and pasta, analyzing reading and typing speeds, comparing train speeds, and finding the surface area of a polyhedron. Each section demonstrates practical applications of ratios and mathematical reasoning.

If a store sells 2 gallons of vinegar for $3, how much would 1 gallon cost?

• $2.00

• $1.00

• $3.00

• $1.50

A chef needs 15 gallons of vinegar. If 2 gallons cost $3, what is the total cost for 15 gallons?

• $15.00

• $45.00

• $30.00

• $22.50

How much will a caterer pay for 21 pounds of pasta if 8 pounds cost $12?

• $31.50

• $28.00

• $25.50

• $30.00

What is the cost per pound of pasta if 8 pounds cost $12?

• $1.00

• $1.25

• $1.50

• $2.00

If Lynn reads 20 pages in 35 minutes, how long will it take her to read a 47-page book?

• 90 minutes

• 60 minutes

• 70 minutes

• 82 minutes

How much more time does Lynn need to finish the book if she has already read for 60 minutes?

• 30 minutes

• 15 minutes

• 10 minutes

• 22.25 minutes

Diego can type 140 words in 4 minutes. How many words can he type in 1 minute?

• 30 words

• 35 words

• 40 words

• 45 words

How long will it take Diego to type 385 words at his current speed?

• 11 minutes

• 10 minutes

• 12 minutes

• 9 minutes

Which train is faster: one traveling 30 miles in 1/3 hour or one traveling 20 miles in 1/2 hour?

• Cannot be determined

• Both are the same

• 20 miles in 1/2 hour

• 30 miles in 1/3 hour

What is the surface area of a polyhedron if the net consists of rectangles and triangles with given dimensions?

• 250 inches squared

• 180 inches squared

• 200 inches squared

• 224 inches squared