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 |
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 |
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. |
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. |
Question 14
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 |
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 |