IMO- Mathematics Olympiad Class 10: Questions 563 - 567 of 908

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Question number: 563

» Everyday Mathematics

MCQ▾

Question

A boy was asked to multiply a given number by (518) . Instead, he divided the given number by (518) and got the result 299 more than what he should have got if he had multiplied the number by (518) . The given number was ________.

Choices

Choice (4) Response

a.

60

b.

90

c.

80

d.

70

Question number: 564

» Everyday Mathematics

MCQ▾

Question

Two Friends P and Q appeared for an exam. Let A be the event that P is selected and B is the event that Q is selected. The probability of A is 19 and that of B is 37 . Find the probability that both of them are selected.

Choices

Choice (4) Response

a.

263

b.

121

c.

156

d.

745

Question number: 565

» Everyday Mathematics

MCQ▾

Question

Sanju has 64 small cubes of 1cm3 . He wants to arrange all of them in a cuboidal shape, such that the surface area will be minimum. What is the diagonal of this larger cuboid?

Choices

Choice (4) Response

a.

4cm

b.

43cm

c.

23cm

d.

2cm

Question number: 566

» Everyday Mathematics

MCQ▾

Question

The ratio between the ages of Samrat and Armaan at present is 2:3 . Five years hence the ratio of their ages will be 3:4 . What is the present age of Samrat?

Choices

Choice (4) Response

a.

25 years

b.

Data inadequate

c.

15 years

d.

10 years

Question number: 567

» Pair of Linear Equations in Two Variables

MCQ▾

Question

a=1+122+132+142++120152

Choices

Choice (4) Response

a.

1

b.

2

c.

3

d.

4

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