Mental Ability [NCO- Cyber Olympiad (SOF) Class 8]: Questions 10 - 18 of 241

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Question 10

Question MCQ▾

A certain sum of simple interest becomes 4 times in 32 years. In how many years will it become six times?

Choices

Choice (4)Response

a.

25 years

b.

52 years

c.

48 years

d.

14 years

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Question 11

Question MCQ▾

If 5 workers can make 45 toys in 10 days, how many toys can 10 workers make in 5 days?

Choices

Choice (4)Response

a.

78

b.

54

c.

45

d.

36

Edit

Question 12

Question MCQ▾

The length of a rope by which a cow must be tethered to graze over an area of is

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 13

Question MCQ▾

The measurement of an angle which is two times its complement angle is ________.

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 14

Question MCQ▾

The value of is

Choices

Choice (4)Response

a.

b.

c.

d.

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Question 15

Question MCQ▾

The sum of two numbers is 30 and the difference of their squares is 30. The difference of the numbers is

Choices

Choice (4)Response

a.

1

b.

0

c.

8

d.

3

Edit

Question 16

Question MCQ▾

A certain sum of simple interest becomes double in 10 years. In how many years will it become four times?

Choices

Choice (4)Response

a.

40 years

b.

20 years

c.

5 years

d.

50 years

Edit

Question 17

Question MCQ▾

= ?

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 18

Question MCQ▾

divided by gives________.

Choices

Choice (4)Response

a.

b.

c.

d.

Edit