International Maths Olympiad Forum By SOF Olympiad Trainer - Page 116

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Akshaj Gupta from Neerja Modi School, Jaipur

Subject :IMO Class : Class 5

Which of the following has the largest area and smallest perimeter?.
(i) A square of side 6 cm.
(ii) A rectangle of length 9 cm and breadth 5 cm.
(iii) A square of side 8 cm.
(iv) A rectangle of length 7 cm and breadth 8 cm.

--------Largest area---Smallest perimeter
A(i)---------------------(iii)
B(ii)---------------------(iii)
C(iii)---------------------(i)
D(i)----------------------(i)

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Akshaj Gupta from Neerja Modi School, Jaipur

Subject :IMO Class : Class 5

Naman left the town P at time shown below. After 1 hour 50 minutes, he stopped at Town Q for rest. He then took another 2 hours 25 minutes to reach Town R. How long was his rest break?

A2 hr 50 mins
B1 hr 25 mins
C1 hr 50 mins
D2 hrs 10 mins

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Aryan Swain from Kendriya Vidyalaya, Barimul, Kendrapara

Subject :IMO Class : Class 3

is _______ g heavier than .

A200
B100
C500
D600

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Priyam Bhattacharya from Cambridge Court High school, JAIPUR

Subject :IMO Class : Class 9

A cylindrical container of base radius 6 cm, has water upto a height of 5 cm. Find :
(A) Volume of water.
(B) A metal sphere of radius 2 cm is totally submerged in the water. Find rise in the water level.

A
B
C
DNone of these

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Aanya Neelee from Apeejay Nerul , Navi Mumbai

Subject :IMO Class : Class 5

Which type of angle has a measure that is smaller than obtuse angle?

AAcute
BRight
CStraight
DBoth A and B

The answer is D

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Arkajyoti Das from techno, Cooch Behar

Subject :IMO Class : Class 7

In the given figure (not drawn to scale), ADE is an isosceles triangle, BCA is a right-angled triangle, FBA and ACD are equilateral triangles. If ∠ADE = 45° and ∠ABC = 52°, then find x.

A38°
B40°
C60°
D44°

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Prachi from Holy Child Public school, Faridabad

Subject :IMO Class : Class 8

Solve :

A
B
C
D

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Vivaan Joshi from Indira National School, Pune

Subject :IMO Class : Class 3

Which of the following statements is INCORRECT about the given figure?

AIt has 6 faces.
BIt has 8 corners.
CAll sides are of equal length.
DIt has only one curved surface.