Mental Ability-Basic Arithmetic (NCO- Cyber Olympiad Class 7): Questions 62 - 68 of 122

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Question number: 62

» Mental Ability » Basic Arithmetic

MCQ▾

Question

6 children and 10 men completed a certain piece of work in 12 days. Each children takes twice the time taken by a man to finish the work. In how many days will 10 men finish the same work?

Choices

Choice (4) Response
a.

8

b.

15.6

c.

12.5

d.

9

Question number: 63

» Mental Ability » Basic Arithmetic

MCQ▾

Question

Convert the 0.25 into vulgar fractions

Choices

Choice (4) Response
a.

15

b.

13

c.

14

d.

12

Question number: 64

» Mental Ability » Basic Arithmetic

MCQ▾

Question

A train 360 m long is running at a speed of 45kmhr . In what time will it pass a bridge 140 m long?

Choices

Choice (4) Response
a.

48 sec

b.

45 sec

c.

40 sec

d.

42 sec

Question number: 65

» Mental Ability » Basic Arithmetic

MCQ▾

Question

Which of the following can be the exact multiple of 2?

Choices

Choice (4) Response
a.

27

b.

15

c.

63

d.

12

Question number: 66

» Mental Ability » Basic Arithmetic

MCQ▾

Question

The cost of cultivating a square field at the rate of rupees 250 per hectare is rupees 3650. What is the cost of putting a fence around it at 25 paise per meter?

Choices

Choice (4) Response
a.

425.6 rupees

b.

200 rupees

c.

382.09 rupees

d.

320 rupees

Question number: 67

» Mental Ability » Basic Arithmetic

MCQ▾

Question

Human blood RBC’s are expressed in terms of number of red blood cells per cubic mm. Express 8.8 million blood cells per cubic mm terms of scientific notation.

Choices

Choice (4) Response
a.

8.8 ×106

b.

88 ×106

c.

0.88 ×106

d.

0.88 ×105

Question number: 68

» Mental Ability » Basic Arithmetic

MCQ▾

Question

Which of the following can be the exact multiple of 3?

Choices

Choice (4) Response
a.

28

b.

17

c.

63

d.

13

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