IMO- Mathematics Olympiad Class 10: Questions 508 - 511 of 889

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Question number: 508

» Everyday Mathematics

MCQ▾

Question

X, Y and Z start at the same time in the same direction to run around a circular stadium. X completes a round in 160 seconds, Y in 260 seconds and Z in 200 seconds, all starting at the same point. After what time will they meet again at the starting point?

Choices

Choice (4) Response
a.

346minutes40seconds

b.

336minutes20seconds

c.

258minutes10seconds

d.

246minutes30seconds

Question number: 509

» Everyday Mathematics

MCQ▾

Question

A train 100 meters long moving at a speed of 50 km/hr crosses a train 120 meters long coming from opposite direction in 6 seconds. The speed of second train is ________

Choices

Choice (4) Response
a.

60kmhr

b.

132kmhr

c.

82kmhr

d.

50kmhr

Question number: 510

» Everyday Mathematics

MCQ▾

Question

A boy was asked to multiply a given number by (817) . Instead, he divided the given number by (817) and got the result 225 more than what he should have got if he had multiplied the number by (817) . The given number was ________.

Choices

Choice (4) Response
a.

136

b.

64

c.

8

d.

17

Question number: 511

» Everyday Mathematics

MCQ▾

Question

Sumit has 27 small cubes of 1cm3 . He wants to arrange all of them in a cuboidal shape, such that the surface area will be minim um. What is the diagonal of this larger cuboid?

Choices

Choice (4) Response
a.

3cm

b.

34cm

c.

35cm

d.

33cm

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