Quiz tentang Bacaan

Budi likes to buy mango-flavored candy. On the candy wrapper, there is a note that says 'exchange 3 candy wrappers for 1 new candy.' After reading that note, Budi told his friends, Hadi and Reza. Since then, every time they buy candy, they always keep the candy wrappers. Today, Budi, Hadi, and Reza exchanged 15, 24, and 30 candy wrappers respectively. How many bonus candies can they get?

Answer explanation

Budi can exchange 15 wrappers for 5 candies, Hadi can exchange 24 for 8 candies, and Reza can exchange 30 for 10 candies. In total, they get 5 + 8 + 10 = 23 bonus candies.

The pedosphere is the outer layer of the Earth where the process of soil formation occurs. This layer is located at the interface of the lithosphere, atmosphere, hydrosphere, and biosphere. The total land surface area currently is 14 percent of the total surface area of the Earth, and of that amount, only 5 percent is planted with vegetation. Calculate the surface area of the Earth that is planted with vegetation!

• 0.7 percent

• 5 percent

• 14 percent

• 19 percent

Answer explanation

The question states that 5 percent of the total land surface area is planted with vegetation. Since the total land area is 14 percent of the Earth's surface, the correct answer is 5 percent.

A father received a bonus of Rp26,000,000 from his workplace and plans to give all of that money to his four children. If each child receives Rp1,000,000 more than his younger sibling below him, which of the following statements is most accurate?

• The second child receives Rp7,000,000

• The money received by the fourth child is half of what the first child receives

• The money received by the first child is equal to the amount received by two times the first child plus the second child

• The second child receives a quarter of the money received by the first child

Answer explanation

The total amount is Rp26,000,000. If the first child receives x, then the second gets x+1, the third x+2, and the fourth x+3. Solving the equation 4x + 6 = 26,000,000 gives x = 6,000,000. Thus, the second child receives Rp7,000,000.

The cost of motorcycle repair at a workshop is as follows: Change oil: Rp50,000, CVT service: Rp25,000. If there are at least 5 people changing oil and 2 people servicing CVT in one day, and then the workshop receives an income of Rp925,000, how many people changed the oil and serviced the CVT?

Answer explanation

Let x be the number of oil changes and y be the CVT services. We have 50,000x + 25,000y = 925,000. Given x >= 5 and y >= 2, solving gives x = 15 and y = 5, satisfying all conditions.

Anita is accompanying her mother at the store. She is playing with the calculator on the cashier's desk. She types a number and then multiplies it by 5. After that, she presses the add button and the number 15. The calculator shows the number 50.

Answer explanation

Let x be the number Anita typed. The equation is 5x + 15 = 50. Solving for x gives 5x = 35, so x = 7. Thus, Anita initially typed 7.

A calculator is on the cashier's table. He types a number and then multiplies it by 5. After that, he presses the add button and the number 15. The calculator shows the number 50. What was the first number he entered?

Answer explanation

Let the first number be x. The equation is 5x + 15 = 50. Subtracting 15 gives 5x = 35. Dividing by 5 results in x = 7. Thus, the first number entered was 7.

Anto has a garden that is 12 meters long and 7 meters wide. Ani also has a garden with the same size as Anto's garden. Anto and Ani want to build a fence around their gardens. How many meters of fence do Anto and Ani need in total?

• 84 m

• 76 m

• 38 m

• 31 m

Answer explanation

To find the total length of the fence needed, first calculate the perimeter of one garden: 2 * (12 + 7) = 38 meters. Since both Anto and Ani have gardens, multiply by 2: 38 * 2 = 76 meters. The correct total is 84 meters.

Four children are buying books together. Ani has more books than Budi. Cinta buys the most books. Ani buys fewer books than Dedi. What is the order from the most to the least books bought?

• Ani, Budi, Cinta, Dedi

• Cinta, Dedi, Ani, Budi

• Budi, Cinta, Ani, Dedi

• Cinta, Ani, Budi, Dedi

Answer explanation

Cinta buys the most books. Ani has more than Budi but fewer than Dedi, placing Dedi second. Thus, the order is Cinta, Dedi, Ani, Budi.

Mrs. Dina is a mathematics teacher at SD Prestasi. She teaches 98 students in grade 5 divided into four classes. Mathematics lessons are held every Monday to Friday for 1 hour each session. How many hours does Mrs. Dina teach each week?

• 4 hours

• 5 hours

• 20 hours

• 28 hours

Answer explanation

Mrs. Dina teaches 1 hour per day for 5 days a week. Therefore, 1 hour/day x 5 days = 5 hours per class. With 4 classes, she teaches 5 hours/class x 4 classes = 20 hours. However, if she teaches all classes simultaneously, it totals 28 hours.

Every 70 minutes of online learning, Budi takes a break and does light exercise for 5 minutes. Today, Budi starts his online class at 08:00 and finishes at 14:01. How many times did Budi take a break during online learning today?

• 3 times

• 4 times

• 5 times

• 6 times

Answer explanation

Budi studies from 08:00 to 14:01, which is 361 minutes. He takes a break every 70 minutes. In 361 minutes, he completes 5 full 70-minute sessions (350 minutes), taking breaks after 70, 140, 210, and 280 minutes, totaling 4 breaks.