IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 663 - 670 of 931
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Question 663
Question
MCQ▾If 100 men can do a job in 80 days, in how many days will 120 men do it in ________.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 67 days | |
b. | 65 days | |
c. | 63 days | |
d. | 69 days | |
Question 664
Question
MCQ▾In the figure 3x = 90˚, then ∠ ROS is________
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 120˚ | |
b. | 150˚ | |
c. | 130˚ | |
d. | 140˚ | |
Question 665
Question
MCQ▾The compound interest on ₹ 80000 at per annum for 9 months, compound quarterly is ________
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ₹ 14610 | |
b. | ₹ 12610 | |
c. | ₹ 15610 | |
d. | ₹ 13610 | |
Question 666
Question 667
Question
MCQ▾A man rows downstream 30 km and upstream 18 km, taking 5 hours each time. The velocity of current is ________
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 1.2 km/hr | |
b. | 6 km/hr | |
c. | 3.6 km/hr | |
d. | 2.4 km/hr | |
Question 668
Question
MCQ▾According to Euclid, a point has________
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Length, breadth and thickness | |
b. | No Length but breadth and thickness | |
c. | Length and breadth but no thickness | |
d. | No length, no breadth and no thickness | |
Question 669
Question
MCQ▾The number of values of k for which the system of equations , has the solutions?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ||
b. | ||
c. | ||
d. | ||
Question 670
Question
MCQ▾Which of the following pairs of equations have the same solution
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ||
b. | ||
c. | ||
d. | ||