IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 648 - 655 of 930
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Question 649
Question 650
Question MCQ▾
The number of ways of writing the number in the form (a, b are integers)
Choices
Choice (4) | Response | |
---|---|---|
a. | 1 | |
b. | Infinitely many | |
c. | 0 | |
d. | Finitely many |
Question 651
Question MCQ▾
A class starts at 10 a. m. and lasts till 1.27 p. m. four periods are held during this interval. After every period, 5 minutes are given free to the students. The exact duration of each period is ________
Choices
Choice (4) | Response | |
---|---|---|
a. | 48 minutes | |
b. | 51 minutes | |
c. | 42 minutes | |
d. | 53 minutes |
Question 652
Question MCQ▾
The product of all the solutions of , is ________.
Choices
Choice (4) | Response | |
---|---|---|
a. | 4 | |
b. | ||
c. | 16 | |
d. |
Question 653
Question MCQ▾
The number of positive integers k for which the equation has an integer solution for x is ________
Choices
Choice (4) | Response | |
---|---|---|
a. | 2 | |
b. | 3 | |
c. | 5 | |
d. | 8 |
Question 654
Question MCQ▾
The median of the observation 30, 91, 0, 64, 42, 80, 30, 5,117, 71 is ________
Choices
Choice (4) | Response | |
---|---|---|
a. | 52.5 | |
b. | 51 | |
c. | 53 | |
d. | 52 |
Question 655
Question MCQ▾
In the figure y = 30˚, then ∠ DOE is________ (Assume X = Y)
Choices
Choice (4) | Response | |
---|---|---|
a. | 150˚ | |
b. | 30˚ | |
c. | 60˚ | |
d. | 90˚ |