Percent of Change Word Problems

Sonya’s heart rate was 76 beats per minute.

She ran a mile on her treadmill and checked

her heart rate again. This time, her heart rate

was 133 beats per minute. What was the

percent increase in Sonya’s heart rate?

• 43%

• 75%

• 57%

• 13%

Tags

CCSS.6.RP.A.3C

Isaac is growing a tomato plant. When he

measured his plant in June, it was 4.5 inches

tall. By July, it was 11.25 inches tall. What was

the percent increase in the height of Isaac’s

tomato plant from June to July?

• 150%

• 60%

• 67.5%

• 6.75%

Tags

CCSS.6.RP.A.3C

There were 425 people at the Lincoln

County High School football game last

week. This week, 357 people attended

the game. What was the percent decrease

in attendance?

• 68%

• 54%

• 19%

• 16%

Tags

CCSS.6.RP.A.3C

Last year, a taco truck ordered 3,000

pounds of cheese. This year, they ordered

2,100 pounds of cheese. What was the

percent decrease in the pounds of cheese

the taco truck ordered?

(a)  

Tags

CCSS.6.RP.A.3C

A video game console at Games Galore

normally costs $399.50, but all consoles are

marked down by 20% this week. What is the

price of a video game console this week?

• $79.90

• $479.40

• $319.60

• $39.95

Tags

CCSS.6.RP.A.3C

At one point, there were only 2,410

black rhinos left on Earth. With the help

of conservation efforts, the black rhino

population then increased by about 130%.

About how many black rhinos were on

Earth then?

• 700

• 5,500

• 3,100

• 1,700

Answer explanation

If something is INCREASED by 100%, it is doubled. So increasing a number by 130% means to add 130% of the number to the original number. In other words, find 230% of the number, or multiply the number by 2.3.

Tags

CCSS.6.RP.A.3C

There were 832 copies of Loretta’s Lion sold

within its first year of being published. In

the second year, the number of copies sold

was 12.5% less than the first year. How many

copies of Loretta’s Lion were sold in the

second year?

(a)  

Tags

CCSS.6.RP.A.3C

Kat competed in the long jump at the state

track meet. Her first jump was 4.8 meters.

Her second jump was 15% longer than her

first jump. What was the length of Kat’s

second jump?

(a)  

Tags

CCSS.6.RP.A.3C