Mental Ability (NSO Level 1- Science Olympiad (SOF) Class 8): Questions 1 - 6 of 104

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Question number: 1

» Mental Ability

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MCQ▾

Question

Which of the following statement is false?

Choices

Choice (4) Response

a.

The orthocenter of a right angled triangle is the vertex containing right angles

b.

The circumcentre of a right angled triangle is the midpoint of its hypotenuse

c.

The centroid of a right angled triangle lies in the interior of the triangle

d.

None of the above

Question number: 2

» Mental Ability

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MCQ▾

Question

Find the smallest number of four digits exactly divisible by 6,12,20 and 36.

Choices

Choice (4) Response

a.

1020

b.

1120

c.

1080

d.

1045

Question number: 3

» Mental Ability

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MCQ▾

Question

The length of a rectangle is triple while its breath is halved. What is the percentage change in area?

Choices

Choice (4) Response

a.

50%

b.

30%

c.

No Change

d.

20%

Question number: 4

» Mental Ability

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MCQ▾

Question

The length of a rectangle is halved while its breath is double. What is the percentage change in area?

Choices

Choice (4) Response

a.

No Change

b.

50%

c.

30%

d.

20%

Question number: 5

» Mental Ability

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MCQ▾

Question

Four different electronic devices make a beep after every 30 minutes, 1 hour, 1 hour 45 minutes and 2 hour respectively. All the devices beeped together at 12 noon. They will again beep together at

Choices

Choice (4) Response

a.

3 am

b.

12 midnights

c.

2 am

d.

6 pm

Question number: 6

» Mental Ability

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MCQ▾

Question

A’s money is to B’s money as 4: 5 and B’s money is to C’s money as 2: 6. If A has Rs. 520, Y has________

Choices

Choice (4) Response

a.

Rs. 1500

b.

Rs. 1950

c.

Rs. 1780

d.

Rs. 1420

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