Profit, Ratios, and Sequences

The video tutorial by Arya Masrur covers various math problems often encountered in tests. It begins with calculating profit percentage, followed by solving a ratio problem involving money. The tutorial then explains how to find the sum of a series of numbers, calculate travel time in minutes, and determine the number of workers needed for a task. The video concludes with a new problem for viewers to solve.

What is the profit percentage if a shirt is bought for Rp40,000 and sold for Rp46,000?

• 10%

• 15%

• 20%

• 25%

Tags

CCSS.6.RP.A.3C

What is the profit percentage if a shirt is bought for Rp40,000 and sold for Rp50,000?

• 20%

• 35%

• 25%

• 30%

If the ratio of Putri's money to Lia's is 4:7 and their total is Rp132,000, how much money does Putri have?

• Rp60,000

• Rp52,000

• Rp48,000

• Rp56,000

Tags

CCSS.3.OA.D.8

If the total money of Putri and Lia is Rp132,000, how much does Lia have?

• Rp90,000

• Rp72,000

• Rp78,000

• Rp84,000

If the ratio of Putri's money to Lia's is 4:7 and their total is Rp154,000, how much money does Lia have?

• Rp92,000

• Rp98,000

• Rp84,000

• Rp88,000

What is the sum of the sequence 1 + 3 + 5 + ... + 39?

• 600

• 820

• 400

• 800

What is the sum of the sequence 2 + 4 + 6 + ... + 100?

• 2500

• 2550

• 2600

• 2650

Tags

CCSS.6.RP.A.3B

How long does it take in minutes to travel 360 km at a speed of 40 km/h?

• 600 minutes

• 660 minutes

• 540 minutes

• 480 minutes

Tags

CCSS.HSA.CED.A.1

If 16 workers can complete a task in 30 days, how many workers are needed to finish it in 24 days?

• 18 workers

• 20 workers

• 24 workers

• 22 workers

Tags

CCSS.HSA.CED.A.1

How many workers are needed to complete a task in 20 days if 16 workers can do it in 30 days?

• 24 workers

• 28 workers

• 22 workers

• 26 workers

Tags

CCSS.HSA.CED.A.1