Exam number 1: Đi tìm kho báuQuestion 1:There are 40 students in Mrs. Browns class. 25% of her students received a B on the test. How many students received a B?a. 10b. 12c. 18d. 20Question 2:What is the product of 3.05 and 2.8?a. 8.54b. 8.056c. 8.56d. 8.054Question 3:A clothing shop is having a 40% off sale. How much would Jane have to pay for a $30 sweater with a 40% discount?a. $18b. $20c. $50d. $13Question 4:If a pen costs $1.75 and an eraser costs $0.85, which of the following is the cost o...
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Exam number 1: Đi tìm kho báu
Question 1:
There are 40 students in Mrs. Brown's class. 25% of her students received a B on the test. How many students received a B?
- a. 10
- b. 12
- c. 18
- d. 20
Question 2:
What is the product of 3.05 and 2.8?
- a. 8.54
- b. 8.056
- c. 8.56
- d. 8.054
Question 3:
A clothing shop is having a 40% off sale. How much would Jane have to pay for a $30 sweater with a 40% discount?
- a. $18
- b. $20
- c. $50
- d. $13
Question 4:
If a pen costs $1.75 and an eraser costs $0.85, which of the following is the cost of 10 erasers and 5 pens?
- a. $21.75
- b. $26
- c. $18.75
- d. $17.25
Question 5:
If the area of the rectangle ABCD is 60cm2 then the area of the trapezoid MNCD is ..........cm2.
- a. 48
- b. 50
- c. 45
- d. 54
