IMO Level 1- Mathematics Olympiad (SOF) Class 10: Questions 283 - 291 of 968

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Question 283

Question

MCQ▾

Which of the statements given below is correct. If discriminant for equation is D________

Choices

Choice (4)Response

a.

Not determined

b.

c.

d.

Question 284

Question

MCQ▾

If , then is equal to ________

Choices

Choice (4)Response

a.

b.

c.

0

d.

5

Question 285

Question

MCQ▾

Which of the statements given below is correct. If discriminant for equation is D________

Choices

Choice (4)Response

a.

b.

c.

d.

D is not defined

Question 286

Question

MCQ▾

The expression is divisible by . Then m is a divisor of ________

Choices

Choice (4)Response

a.

20

b.

40

c.

54

d.

45

Question 287

Question

MCQ▾

The positive value of k for which the equations and will both have real roots, is ________

Choices

Choice (4)Response

a.

4

b.

8

c.

16

d.

12

Question 288

Question

MCQ▾

Solve the equation by using quadratic formula, then x is ________

Choices

Choice (4)Response

a.

b.

c.

d.

Question 289

Question

MCQ▾

If one roots of is twice the other root, then the value of ‘a’ is ________

Choices

Choice (4)Response

a.

-20

b.

20

c.

-15

d.

15

Question 290

Question

MCQ▾

A convex polygon has 44 diagonals. The number of its sides is ________

Choices

Choice (4)Response

a.

11

b.

10

c.

12

d.

13

Question 291

Question

MCQ▾

In a bangle shop, if the shopkeeper displays the bangles in the form of a square then he is left with 38 bangles with him. If he wanted to increase the size of square by one unit each side of the square he found that 25 bangles fall short of in completing the square. The actual number of bangles which he had with him in the shop was ________

Choices

Choice (4)Response

a.

999

b.

Can՚t be determined

c.

538

d.

1690