NCO- Cyber Olympiad (SOF) Class 8: Questions 47 - 51 of 510

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Question number: 47

» Mental Ability » Basic Arithmetic

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MCQ▾

Question

A certain sum of simple interest becomes its three times in 30 years. In how many years will it becomes double?

Choices

Choice (4)Response

a.

20 years

b.

5 years

c.

60 years

d.

15 years

Question number: 48

» Mental Ability » Basic Arithmetic

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Question

If 16 employees can complete 32 tasks in 8 days, how many tasks can 8 employees complete in 4 days?

Choices

Choice (4)Response

a.

16

b.

8

c.

12

d.

14

Question number: 49

» Mental Ability » Number Games » Number Analogies

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Question

What least number must be subtracted from 136 to make it a perfect square?

Choices

Choice (4)Response

a.

15

b.

8

c.

21

d.

7

Question number: 50

» Mental Ability » Basic Geometry

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Question

If the radius of a cone is increased by 80%, its volume is increased by

Choices

Choice (4)Response

a.

160%

b.

40%

c.

224%

d.

112%

Question number: 51

» Logical and Analytical Reasoning » Analogy and Classification

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Study the diagram given carefully and answer the question.

Triangle poly1Triangle poly1: Polygon C, D, EQuadrilateral poly2Quadrilateral poly2: Polygon F, G, H, ITriangle poly3Triangle poly3: Polygon J, K, LQuadrilateral poly4Quadrilateral poly4: Polygon M, N, O, PCircle cCircle c: Circle through B with center ACircle qCircle q: Circle through R with center QSegment eSegment e: Segment [C, D] of Triangle poly1Segment c_1Segment c_1: Segment [D, E] of Triangle poly1Segment dSegment d: Segment [E, C] of Triangle poly1Segment fSegment f: Segment [F, G] of Quadrilateral poly2Segment gSegment g: Segment [G, H] of Quadrilateral poly2Segment hSegment h: Segment [H, I] of Quadrilateral poly2Segment iSegment i: Segment [I, F] of Quadrilateral poly2Segment lSegment l: Segment [J, K] of Triangle poly3Segment jSegment j: Segment [K, L] of Triangle poly3Segment kSegment k: Segment [L, J] of Triangle poly3Segment mSegment m: Segment [M, N] of Quadrilateral poly4Segment nSegment n: Segment [N, O] of Quadrilateral poly4Segment oSegment o: Segment [O, P] of Quadrilateral poly4Segment pSegment p: Segment [P, M] of Quadrilateral poly47text1 = “7”5text1_1 = “5”1text1_2 = “1”6text1_3 = “6”4text1_4 = “4”2text1_5 = “2”3text1_6 = “3”Engineer in towntext1_7 = “Engineer in town”Employed engineerstext1_8 = “Employed engineers”Engineers out of towntext1_9 = “Engineers out of town”

Image of Three Geometrical Shapes with Some Parts in Each Other

Employed engineers in town are represented by?

Choices

Choice (4)Response

a.

6

b.

7

c.

5

d.

4

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