Surface Area and Volumes [IMO Level 1- Mathematics Olympiad (SOF) Class 9]: Questions 24 - 29 of 105
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Question 24
Question MCQ▾
The ratio between the length and the breadth of a rectangular park is . If a man cycling along the boundary of the park at the speed of 15 km/hr completes one round in 12 minutes, then the area of the park is________
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Choice (4) | Response | |
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a. | ||
b. | ||
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Question 25
Question MCQ▾
The number of spherical balls each 4 cm in diameter be made out of a rectangular solid is ________
Choices
Choice (4) | Response | |
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a. | 107 | |
b. | 105 | |
c. | 102 | |
d. | 109 |
Question 26
Question MCQ▾
The ratio between the perimeter and breadth of rectangle is . If the area of the rectangle is 116 sq. cm. then length of the rectangle is ________
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Question 27
Question MCQ▾
The volume of a sphere is the curved surface of its sphere is ________
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Question 28
Question MCQ▾
The radii of two cones are in ration 3: 1, their volumes are equal. Find the ratio of their heights.
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Question 29
Question MCQ▾
A solid consists of a circular cylinder with an exact fitting right circular cone placed on the top. The height of a the cone is h. If the total volume of the solid is three times the volume of the cone, then the height of the cylinder is ________
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Choice (4) | Response | |
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a. | ||
b. | ||
c. | ||
d. |