Mental Ability-Basic Geometry [NCO- Cyber Olympiad (SOF) Class 10]: Questions 1 - 6 of 57
Access detailed explanations (illustrated with images and videos) to 495 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access, Unlimited Time, on Unlimited Devices!
View Sample Explanation or View Features.
Rs. 300.00 -OR-
How to register? Already Subscribed?
Question 1
Question
MCQ▾The Volume of a solid metallic sphere is 2512 . It is melted and recast into solid right circular cones of radius 5 cm and height 16 cm. Calculate the number of cones recast.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 9 | |
b. | 6 | |
c. | 8 | |
d. | 7 | |
Question 2
Question
MCQ▾In the figure drawn below, and are parallel and . What is ?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ||
b. | ||
c. | ||
d. | ||
Question 3
Question
MCQ▾The minute hand of a clock is 20 cm long. Find the area of the face of the clock described by the minute hand between 8 AM and 8.35 AM.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ||
b. | ||
c. | ||
d. | ||
Question 4
Question
MCQ▾Calculate the area of the shaded portion. The quadrants shown in the figure are each of radius 14 cm. Take .
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ||
b. | ||
c. | ||
d. | ||
Question 5
Question
MCQ▾The top of a ladder is leaning against a building at a point 24 feet above the ground; the bottom of the ladder is 10 feet from the building. What is the length of the ladder?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 26 ft | |
b. | 34 ft | |
c. | 14 ft | |
d. | 38 ft | |
Question 6
Question
MCQ▾The ratio of radii of two cylinders is and heights are in the ratio 3: 5. The ratio of volumes is
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 3: 4 | |
b. | 1: 3 | |
c. | 4: 5 | |
d. | 3: 5 | |