IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 841 - 847 of 931

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Question 841

Question

MCQ▾

If and , then value of is________.

Choices

Choice (4)Response

a.

770

b.

555

c.

227

d.

115

Question 842

Question

MCQ▾

The median of the observation 2, 1, 12, 29, 25, 12,10, 4,5 is ________

Choices

Choice (4)Response

a.

15

b.

12

c.

10

d.

25

Question 843

Question

MCQ▾

A man purchased two clocks P and Q at a total cost ₹ 800. He sells P at profit and Q at a loss of and gets the same selling price for both the clocks. What are the purchasing prices of P and Q respectively?

Choices

Choice (4)Response

a.

₹ 275, ₹ 425

b.

₹ 266.67, ₹ 533.33

c.

₹ 250.65, ₹ 200.22

d.

₹ 360, ₹ 850

Question 844

Question

MCQ▾

The mean of 24 observations is 35. If the mean of the first 12 observations is 31 and that of the last 12 observations is 38, then the 12th observation is ________

Choices

Choice (4)Response

a.

15

b.

11

c.

14

d.

12

Question 845

Question

MCQ▾

Choose the correct alternative that will continue the same pattern. 6, 11, 21,36, 56, (…)

Choices

Choice (4)Response

a.

91

b.

42

c.

81

d.

51

Question 846

Question

MCQ▾

Which equation satisfies the data in the table?

Find the Equation That Satisfies the Value of X and Y
X3579
Y2468

Choices

Choice (4)Response

a.

b.

c.

d.

Question 847

Question

MCQ▾

Factors of

Choices

Choice (4)Response

a.

b.

c.

d.