IMO Level 1- Mathematics Olympiad (SOF) Class 10: Questions 486 - 493 of 968
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Question 486
Question
MCQ▾Find the area of the quadrilateral, the coordinates of whose angular points taken in order are .
Choices
Choice (4) | Response | |
---|---|---|
a. | 184 | |
b. | 115 | |
c. | 146 | |
d. | 712 |
Question 487
Question
MCQ▾The mean of 10 observations is . if each observation is multiplied by 4, then what is the new mean?
Choices
Choice (4) | Response | |
---|---|---|
a. | 60 | |
b. | 50 | |
c. | 70 | |
d. | 30 |
Question 488
Question
MCQ▾The mean of 9 observations is 36. If the mean of the first 5 observations is 32 and that of the last 5 observations is 39, then the fifth observation is ________
Choices
Choice (4) | Response | |
---|---|---|
a. | 37 | |
b. | 28 | |
c. | 43 | |
d. | 31 |
Question 489
Question
MCQ▾is three vertices of the parallelogram WXYZ. The coordinates of fourth vertex is ________
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Choice (4) | Response | |
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a. | ||
b. | ||
c. | ||
d. |
Question 490
Question
MCQ▾If the Points are collinear then which of the following is true?
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Choice (4) | Response | |
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a. | ||
b. | ||
c. | ||
d. |
Question 491
Question
MCQ▾The vertices of are . If AD is angle bisector, where D meets on BC, then coordinates of D are ________
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Choice (4) | Response | |
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Question 492
Question
MCQ▾In the figure, is isosceles. Then ________
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Question 493
Question
MCQ▾A card is drawn from a packet of 200 cards numbered 1 to 200. The probability of drawing a number which is a thrice is ________
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Choice (4) | Response | |
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a. | ||
b. | ||
c. | ||
d. |