Mental Ability [NCO- Cyber Olympiad (SOF) Class 7]: Questions 83 - 86 of 204
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Question 83
Question MCQ▾
The product of two numbers is 25 and the sum of their squares is 125. The sum of the number is.
Choices
Choice (4) | Response | |
---|---|---|
a. | 21.21 | |
b. | 13.22 | |
c. | 16.90 | |
d. | All of the above |
Question 84
Question MCQ▾
If and be any two rational numbers then we define:
Thus, subtracting a rational number means adding its additive inverse. Based on the statement given above solve the following Problem: Subtract from .
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 85
Question Match List-Ⅰ List-Ⅱ▾
Match the following.
List-Ⅰ | List-Ⅱ |
(A) Circumcenter | (i) The point at which the altitudes of a triangle meet |
(B) In Centre | (ii) The point at which the three angle bisectors of a triangle meet |
(C) Centroid | (iii) The point of intersection of the perpendicular of the sides of a triangle |
(D) Orthocenter | (iv) The point at which the medians of a triangle meet |
Choices
Choice (4) | Response | |
---|---|---|
| ||
a. |
| |
b. |
| |
c. |
| |
d. |
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Question 86
Question MCQ▾
A train 600 meters long is running at a speed of If it crosses a tunnel in 1 minute, then the length of the tunnel (in meters) is.
Choices
Choice (4) | Response | |
---|---|---|
a. | 130 | |
b. | 360 | |
c. | 300 | |
d. | 500 |