IMO- Mathematics Olympiad Class 9: Questions 682 - 687 of 919

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Question number: 682

» Polynomials

MCQ▾

Question

Equation

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 683

» Statistics and Probability

MCQ▾

Question

The average of n numbersEquation is A. if Equation is replaced by Equation is replaced by Equation , …, then the new average is ________

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 684

» Everyday Mathematics

MCQ▾

Question

One quality of wheat at Rs. 9.30 per kg is mixed with another quality at a certain rate in the ratioEquation . If the mixture so formed be worth Rs. 10 per kg, what is the rate per kg of the second quality of wheat?

Choices

Choice (4) Response

a.

Rs. 10.60

b.

Rs. 10.30

c.

Rs. 11

d.

Rs. 10.80

Question number: 685

» Everyday Mathematics

MCQ▾

Question

A bicycle is sold at a gain of Equation . If it had been sold for Rs. 20 more, Equation would have been gained. The C. P. of the bicycle is ________

Choices

Choice (4) Response

a.

Rs. 400

b.

Rs. 600

c.

Rs. 500

d.

Rs. 350

Question number: 686

» Everyday Mathematics

MCQ▾

Question

A certain number of men can finish a piece of work in 100 days. If there were 10 men less, it would take 10 days more for the work to be finished. How many men were there originally?

Choices

Choice (4) Response

a.

147

b.

146

c.

110

d.

75

Question number: 687

» Statistics and Probability

MCQ▾

Question

The King, queen and jack of clubs are removed from a deck of 52 cards and then well-shuffled. One card id selected from the remaining cards. The probability of getting a black card is ________

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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