6.4B - Ratios and rates

Roderick earns an interest of 30 per year for every 500 deposited in his savingsaccount. Calculate the interest earned if he has 1,250 in his account.

• $75

• $85

• $55

• $65

Answer explanation

WKNT

The original length of a copper rod is 18 feet. The rod is split in the ratio 3 : 2. Find the length of the longer rod.

• 10.8 feet

• 10.6 feet

• 10.4 feet

• 11 feet

Answer explanation

WKNT

A room is 14 feet long. Find the width of the room, if the ratio of the length to the width of the room is 7 : 5.

• 10

• 12

• 14

• 16

Answer explanation

WKNT

Lara and Mae are collecting seashells. For every 9 seashells that Lara picked, Mae gathered 7 seashells. If Lara collected 63 seashells, how many fewer seashells did Mae gather?

• 16

• 14

• 15

• 13

Answer explanation

Set up your proportion and cross multiply then divide.

Amy’s Knitwear sold a total of 54 scarves equally over 6 days. Find the number of scarves that were sold per day.

• 12 scarves/day

• 3 scarves/day

• 5 scarves/day

• 9 scarves/day

Zara splits 255 candies equally into 51 bags for Halloween. What number of candies does each bag contain?

• 1 candies/bag

• 5 candies/bag

• 4 candies/bag

• 3 candies/bag

Lara completed 105 sit-ups in 3 minutes. How many sit-ups did she accomplish per minute?

• 35 sit-ups/minute

• 25 sit-ups/minute

• 15 sit-ups/minute

• 45 sit-ups/minute

A gas station registers a total of 144 sales during 6 non-peak hours on Monday.Find the number of sales recorded per hour.

• 22 sales recorded/hour

• 24 sales recorded/hour

• 23 sales recorded/hour

• 14 sales recorded/hour

Ms. Wilkins divides 32 students in her class into groups of 8 for a class activity. How many students will you and in each group?

• 4 students/group

• 2 students/group

• 6 students/group

• 5 students/group

Brett’s orchard has 98 pear trees in 14 rows. How many number of trees can be found in 8 rows?

• 8 trees/row ; 57 trees

• 4 trees/row ; 36 trees

• 6 trees/row ; 46 trees

• 7 trees/row ; 56 trees