Proportions

A piece of cable 8.5 cm long weighs 52 grams. What will a 10-cm length of the same cable weigh?

• 61.18 grams

• 62.25 grams

• 65.56 grams

• 58.25 grams

The ratio of men to women at a class is 6 to 5. How many women students are there if there are 3600 men?

• 3000 women

• 2500 women

• 3500 women

• 3250 women

If 3 pounds of apples costs $0.90, how much will 10 pounds cost?

• $3.00

• $2.50

• $3.50

• $2.25

A 2-liter bottle of soda costs $2.50. A this rate, what would the cost of 5 liters be?

• $6.25

• $7.25

• $8.25

• $5.25

A worker can complete the assembly of 15 iphones in 6 hours. At this rate, how many can the worker complete in a 40-hour work week?

• 50 iphones

• 75 iphones

• 100 iphones

• 125 iphones

About 13 out of 20 homes have a personal computer.  On a street with 60 homes, how many would you expect to have a personal computer?
 

• 7 homes

• 39 homes

• 73 homes 

• 40 homes

• 74
• 100
• 104
• 108

• 20
• 30
• 25
• 23

• 205
• 105
• 230
• 135

A tree is 72 feet tall and has a shadow that is 12 feet long.  A nearby tree has a shadow of 5 feet.  How tall is the tree? 

• 3 ft.

• 300 ft.

• 30 ft.

• 35 ft.