IMO Level 1- Mathematics Olympiad (SOF) Class 10: Questions 239 - 246 of 1025
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Question 239
Question MCQ▾
A boat goes 20 km upstream and 33 km downstream in 10 hours. In 13 hours, it can go 30 km upstream and 44 km downstream. If x represents the speed of the boat in still water in km/hr and y represent the speed of the stream in km/hr, then ________
Choices
Choice (4) | Response | |
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a. | ||
b. | ||
c. | ||
d. |
Question 240
Question MCQ▾
The difference of roots of the quadratic equation is ________
Choices
Choice (4) | Response | |
---|---|---|
a. | 6 | |
b. | -6 | |
c. | ||
d. |
Question 241
Question MCQ▾
Which of the statements given below is correct. If discriminant for equation is D________
Choices
Choice (4) | Response | |
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a. | ||
b. | ||
c. | ||
d. | All of the above |
Question 242
Question MCQ▾
If the equation has equal roots, and then the both roots are equal to ________
Choices
Choice (4) | Response | |
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a. | ||
b. | ||
c. | ||
d. |
Question 243
Question MCQ▾
If the equation has roots and , then the value of is ________
Choices
Choice (4) | Response | |
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a. | ||
b. | ||
c. | ||
d. |
Question 244
Question MCQ▾
Find the value of ‘p’ if sum of roots of is 3
Choices
Choice (4) | Response | |
---|---|---|
a. | -12 | |
b. | 16 | |
c. | -16 | |
d. | 12 |
Question 245
Question MCQ▾
If one roots of is thrice the other root, then the value of ‘a’ is ________
Choices
Choice (4) | Response | |
---|---|---|
a. | 8 | |
b. | ||
c. | -8 | |
d. |
Question 246
Question MCQ▾
If the roots of the equation are equal. Then ________
Choices
Choice (4) | Response | |
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a. | ||
b. | ||
c. | ||
d. |