Statistics and Probability [IMO Level 1- Mathematics Olympiad (SOF) Class 9]: Questions 95 - 100 of 103
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Passage
A Bus is going on a long journey for 25 hours, starting at 6.00 hrs. The speed of the car at different hours is given below:
Time (in hrs) : | 6 | 8 | 9 | 13 | 14 | 18 | 20 | 22 | 25 |
Speed (in km/hour) : | 30 | 60 | 50 | 40 | 60 | 70 | 80 | 60 | 20 |
From the above table answer the following questions.
Question 95 (3 of 3 Based on Passage)
Question MCQ▾
The average speed (in km/hour) between 6.00 hrs, 8.00 hrs, 9.00 hrs and 13.00 hrs is ________
Choices
Choice (4) | Response | |
---|---|---|
a. | 96 | |
b. | 48 | |
c. | 67 | |
d. | 45 |
Question 96
Question MCQ▾
In a class test, in Science, 45 students scored 88 marks, 15 students scored 75 marks and 5 scored 60 marks. The mean of their score is (approximately) ________
Choices
Choice (4) | Response | |
---|---|---|
a. | 75 marks | |
b. | 80 marks | |
c. | 83 marks | |
d. | 90 marks |
Question 97
Question MCQ▾
The mean, median and mode of the following numbers 2, 4, 5, 6, 7, 6, 5, 4, 3, 2, 1, 1, 1, 6, 8, 8, 4,3, 2,2 are________
Choices
Choice (4) | Response | |
---|---|---|
a. | 3,4, 5 | |
b. | 3,3, 5 | |
c. | 3,4, 3 | |
d. | 4,4, 2 |
Question 98
Question MCQ▾
Mean marks scored by 100 students were found to be 120. Later it was observed that a score of 59 was misread as 95. Then the correct mean is ________
Choices
Choice (4) | Response | |
---|---|---|
a. | 119.64 | |
b. | 169 | |
c. | 179.82 | |
d. | 169.82 |
Question 99
Question MCQ▾
A contractor employed 14 labourers at ₹ 18 each per day, 12 labourers at ₹ 22 each per day, 9 labourers at ₹ 32 each per day and 5 labourers at ₹ 62 each per day. The average wages paid is ________
Choices
Choice (4) | Response | |
---|---|---|
a. | ₹ 28 | |
b. | ₹ 14 | |
c. | ₹ 30 | |
d. | ₹ 26 |
Question 100
Question MCQ▾
One card is drawn from a well-shuffled deck of 52 cards. The probability of drawing an ace is ________
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |