IMO- Mathematics Olympiad Class 9: Questions 787 - 793 of 919

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Question number: 787

» Everyday Mathematics

MCQ▾

Question

A shopkeeper earns a profit of 12% on selling a book at 10% discount on the printed price. The ratio of the cost price and the printed price of the book is ________

Choices

Choice (4) Response

a.

50:61

b.

45:56

c.

99:125

d.

All of the above

Question number: 788

» Polynomials

MCQ▾

Question

Factors of x3+x2+x+1 =

Choices

Choice (4) Response

a.

(x+1)(x2+1)

b.

(x1)(x2+1)

c.

(x1)(x21)

d.

(x+1)(x21)

Question number: 789

» Everyday Mathematics

MCQ▾

Question

If 36 men can do a certain piece of work in 25 days, then 15 men will do it in ________

Choices

Choice (4) Response

a.

40days

b.

60days

c.

101536days

d.

50days

Question number: 790

» Polynomials

MCQ▾

Question

The value of (a+b)3(ab)3+b(6a2b2) =________

Choices

Choice (4) Response

a.

3b3

b.

b3

c.

b3

d.

ab3

Question number: 791

» Polynomials

MCQ▾

Question

x13+y13+z13=0 , then

Choices

Choice (4) Response

a.

x3+y3+z3=27xyz

b.

(x+y+z)3=27xyz

c.

x+y+z=27xyz

d.

x3+y3+z3=0

Question number: 792

» Statistics and Probability

MCQ▾

Question

A card is drawn at random from a well shuffled pack of 52 cards. The probability that the cards drawn in neither a red card nor a queen are ________

Choices

Choice (4) Response

a.

213

b.

513

c.

413

d.

613

Question number: 793

» Statistics and Probability

MCQ▾

Question

Two dice are thrown simultaneously. The odds against getting the sum 6 is________

Choices

Choice (4) Response

a.

315

b.

513

c.

531

d.

135

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