IMO- Mathematics Olympiad Class 9: Questions 732 - 737 of 919

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Question number: 732

» Everyday Mathematics

MCQ▾

Question

In a class, the number of boys is more than the number of girls by 20% of the total strength. The ratio of boys to girls is ________

Choices

Choice (4) Response

a.

1:4

b.

4:1

c.

3:2

d.

5:2

Question number: 733

» Polynomials

MCQ▾

Question

P2QQR2P2S+R2S

Choices

Choice (4) Response

a.

(P+R)(PR)(QS)

b.

(P+R)(PR)(QS)

c.

(P+R)(PR)(Q+S)

d.

None of the above

Question number: 734

» Polynomials

MCQ▾

Question

8x3+27y3+36x2y+54xy2

Choices

Choice (4) Response

a.

(2x+3y)(2x3y)(2x+3y)

b.

(2x+3y)(2x3y)(2x3y)

c.

(2x3y)(2x+3y)(2x+3y)

d.

(2x+3y)(2x+3y)(2x+3y)

Question number: 735

» Everyday Mathematics

MCQ▾

Question

Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 4000 for 2 years at 10% per annum. The sum placed on simple interest is ________

Choices

Choice (4) Response

a.

Rs. 1850

b.

Rs. 1750

c.

Rs. 1650

d.

Rs. 1950

Question number: 736

» Polynomials

MCQ▾

Question

If x+1x=15 , then x2+1x2 is equal to _

Choices

Choice (4) Response

a.

225+1225

b.

210

c.

223

d.

225

Question number: 737

» Polynomials

MCQ▾

Question

The sum of y-coordinates of the intersection of x2+2y2=33 and x2+y2=2x+19 , is ________.

Choices

Choice (4) Response

a.

5

b.

-1

c.

1

d.

0

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