IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 841 - 847 of 931
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Question 841
Question
MCQ▾If and , then value of is________.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 770 | |
b. | 555 | |
c. | 227 | |
d. | 115 | |
Question 842
Question
MCQ▾The median of the observation 2, 1, 12, 29, 25, 12,10, 4,5 is ________
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 15 | |
b. | 12 | |
c. | 10 | |
d. | 25 | |
Question 843
Question
MCQ▾A man purchased two clocks P and Q at a total cost ₹ 800. He sells P at profit and Q at a loss of and gets the same selling price for both the clocks. What are the purchasing prices of P and Q respectively?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ₹ 275, ₹ 425 | |
b. | ₹ 266.67, ₹ 533.33 | |
c. | ₹ 250.65, ₹ 200.22 | |
d. | ₹ 360, ₹ 850 | |
Question 844
Question
MCQ▾The mean of 24 observations is 35. If the mean of the first 12 observations is 31 and that of the last 12 observations is 38, then the 12th observation is ________
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 15 | |
b. | 11 | |
c. | 14 | |
d. | 12 | |
Question 845
Question
MCQ▾Choose the correct alternative that will continue the same pattern. 6, 11, 21,36, 56, (…)
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 91 | |
b. | 42 | |
c. | 81 | |
d. | 51 | |
Question 846
Question
MCQ▾Which equation satisfies the data in the table?
| X | 3 | 5 | 7 | 9 |
| Y | 2 | 4 | 6 | 8 |
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ||
b. | ||
c. | ||
d. | ||