NCO- Cyber Olympiad (SOF) Class 8: Questions 197 - 199 of 510

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Question number: 197

» Mental Ability » Basic Arithmetic

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MCQ▾

Question

Sneha can do a piece of work in 30 days. She works at it for 10 days and then Mona alone finishes the work in 10 days. The two together could have completed the work in

Choices

Choice (4)Response

a.

8 days

b.

20 days

c.

10 days

d.

15 days

Question number: 198

» Mental Ability » Basic Arithmetic

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Image of map of route of School and Library

Image of Map of Route of School and Library

On the map shown above, 2 inches represents 15 miles. The distance between School and Library is 6.8 inches. What is the actual distance between them?

Choices

Choice (4)Response

a.

170 miles

b.

51 miles

c.

13.6 miles

d.

6.8 miles

Question number: 199

» Mental Ability » Number Games » Number Analogies

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The diagram shows how some of the subsets of the set of real numbers are related. The letters represent members of the sets.

Circle cCircle c: Circle through B with center ACircle dCircle d: Circle through D with center CCircle d_1Circle d_1: Circle through D_1 with center C_1Circle d_2Circle d_2: Circle through D_2 with center C_2Rationaltext1 = “Rational”Integerstext1_1 = “Integers”Whole Numberstext1_2 = “Whole Numbers”Whole Numberstext1_2 = “Whole Numbers”Irrationaltext1_3 = “Irrational”Real Numberstext1_4 = “Real Numbers”ptext1_5 = “p”qtext1_6 = “q”rtext1_7 = “r”stext1_8 = “s”ttext1_9 = “t”utext1_ {10} = “u”wtext1_ {11} = “w”xtext1_ {12} = “x”ytext1_ {13} = “y”otext1_ {14} = “o”ntext1_ {15} = “n”

Image of Three Circles Representing Real Numbers

Meena wants to replace the letters with actual numbers. Which letter could be replaced with -5?

Choices

Choice (4)Response

a.

t

b.

p

c.

s

d.

w

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