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Lesson Example Discussion Quiz: Class Homework

Quiz In Class

Title: Percentage Increase

Grade: 1300-a Lesson: S4-L3

Explanation: Hello Students, time to practice and review. Let us take next 10-15 minutes to solve the ten problems using the Quiz Sheet. Then submit the quiz to get the score. This is a good exercise to check your understanding of the concepts.

Quiz: in Class

Problem Id	Problem	Options
1	In 2019, 3500 students were enrolled in a school. The enrollment increased by 25% in 2020. How many students were enrolled in the school in 2020?	A) 4375 B) 4735 C) 4357 D) 4753
2	What’s the increase in the family’s total expenses for wheat, meat, and vegetables if their prices rise by 30%, 50%, and 60% respectively, with expenses initially in the ratio 13:15:17?	A) 49% B) 48% C) 38% D) 35%
3	Determine the overall percentage change when a number is increased by 80% twice and then decreased by 40%.	A) 94% B) 95.50% C) 94.40% D) 94%
4	What is the percentage increase in the height of a tree that grew from 12 feet to 18 feet in one year?	A) 80% B) 70% C) 60% D) 50%
5	What fractional number when increased by 20% becomes \$4/5\$?	A) \$4/3\$ B) \$5/3\$ C) \$2/5\$ D) \$2/3\$
6	If the area of a rectangle is increased by 50%, and the length of the rectangle is increased by 20%, how much does the breadth change?	A) 35% B) 30% C) 25% D) 40%
7	How many units did the factory produce in October after increasing production by 24%, having initially produced 4500 units in September?	A) 5508 units B) 5580 units C) 5850 units D) 5058 units
8	Find the total percent increase in followers for an Instagram influencer with daily growth rates of 20%, 40%, 10%, 30%, and 55% over the first 5 days, followed by doubling their followers for the rest of the month.	A) 645% B) 654% C) 754% D) 745.45%
9	Mohan’s income is Rs. 250 and his savings are Rs. 100. If his income increases by 40% and his expenditure increases by 60%, what will be the increase in Mohan’s savings?	A) RS. 100 B) Rs. 10 C) Rs. 150 D) Rs. 15
10	If a clothes shop normally marks up prices by 90% above the cost and later reduces them by 40% during a sale, what is the resulting percentage profit on the clothes sold?	A) 16% B) 15.50% C) 14% D) 19%

Problem Id

Problem

Options

In 2019, 3500 students were enrolled in a school. The enrollment increased by 25% in 2020. How many students were enrolled in the school in 2020?

A) 4375

B) 4735

C) 4357

D) 4753

What’s the increase in the family’s total expenses for wheat, meat, and vegetables if their prices rise by 30%, 50%, and 60% respectively, with expenses initially in the ratio 13:15:17?

A) 49%

B) 48%

C) 38%

D) 35%

Determine the overall percentage change when a number is increased by 80% twice and then decreased by 40%.

A) 94%

B) 95.50%

C) 94.40%

D) 94%

What is the percentage increase in the height of a tree that grew from 12 feet to 18 feet in one year?

A) 80%

B) 70%

C) 60%

D) 50%

What fractional number when increased by 20% becomes \$4/5\$?

A) \$4/3\$

B) \$5/3\$

C) \$2/5\$

D) \$2/3\$

If the area of a rectangle is increased by 50%, and the length of the rectangle is increased by 20%, how much does the breadth change?

A) 35%

B) 30%

C) 25%

D) 40%

How many units did the factory produce in October after increasing production by 24%, having initially produced 4500 units in September?

A) 5508 units

B) 5580 units

C) 5850 units

D) 5058 units

Find the total percent increase in followers for an Instagram influencer with daily growth rates of 20%, 40%, 10%, 30%, and 55% over the first 5 days, followed by doubling their followers for the rest of the month.

A) 645%

B) 654%

C) 754%

D) 745.45%

Mohan’s income is Rs. 250 and his savings are Rs. 100. If his income increases by 40% and his expenditure increases by 60%, what will be the increase in Mohan’s savings?

A) RS. 100

B) Rs. 10

C) Rs. 150

D) Rs. 15

If a clothes shop normally marks up prices by 90% above the cost and later reduces them by 40% during a sale, what is the resulting percentage profit on the clothes sold?

A) 16%

B) 15.50%

C) 14%

D) 19%