IMO- Mathematics Olympiad Class 9: Questions 782 - 786 of 919

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Question number: 782

» Everyday Mathematics

MCQ▾

Question

A milk vendor has 2 cans of milk. The first contains 30% water and the rest milk. The second contains 50% water. How much milk should he mix from each of the containers so as to get 20 liters of milk such that the ratio of water to milk is 6:11 ?

Choices

Choice (4) Response
a.

14.71 liters, 5.29 liters

b.

4.12 liters, 8.52 liters

c.

17 liters, 15 liters

d.

5.12 liters, 17.52 liters

Question number: 783

» Everyday Mathematics

MCQ▾

Question

The simple interest on a sum of money at 8% per annum for 6 years is half the sum. The sum is ________

Choices

Choice (4) Response
a.

Rs. 8000

b.

Rs. 6000

c.

Rs. 4800

d.

Data inadequate

Question number: 784

» Polynomials

MCQ▾

Question

Given that x=1 is a solution of x3x237x35=0 . The other solutions are ________.

Choices

Choice (4) Response
a.

7,5

b.

5,7

c.

7, 5

d.

7,5

Question number: 785

» Statistics and Probability

MCQ▾

Question

Cards marked with the numbers 2 to 101 are placed in a box and mixed thoroughly. One card is drawn from this bag. The probability that the number which is a perfect square is ________

Choices

Choice (4) Response
a.

9100

b.

1009

c.

1100

d.

19

Question number: 786

» Introduction to Euclid's Geometry

MCQ▾

Question

If a point R lies between two points P and Q such that PR = QR, then PR = ________

Choices

Choice (4) Response
a.

12PQ

b.

QR

c.

PQ

d.

12QR

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