NCO- Cyber Olympiad (SOF) Class 10: Questions 45 - 48 of 461
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Question 45
Question
MCQ▾In a class of four students there are four marks given to students A, B, C and D. The average of the first two marks is 60. The average of the second and third marks in 85 and the average of the third and fourth marks is 90. The average of the first and fourth marks is
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 65 | |
b. | 62 | |
c. | 70 | |
d. | 50 | |
Question 46
Question
MCQ▾In a class of four students there are four marks given to students A, B, C and D. The average of the first two marks is 30. The average of the second and third marks in 55 and the average of the third and fourth marks is 70. The average of the first and fourth marks is
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 40 | |
b. | 60 | |
c. | 45 | |
d. | 85 | |
Question 47
Question
MCQ▾The equation below shows the profit, p, from selling n cups of coffee.
Which of the following best describes the relationship between p and n?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | As n increases, p stays the same | |
b. | As n increases, p sometimes increases and sometimes decreases | |
c. | As n increases, p increases | |
d. | As n increases, p decreases | |
Question 48
Question
MCQ▾The number of words Kiara typed varied directly with the amount of time she spent typing. If she typed 120 words in 10 minutes, how long would it take her to type 1,320 words?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 130 minutes | |
b. | 55 minutes | |
c. | 110 minutes | |
d. | 120 minutes | |