IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 465 - 471 of 1042
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Question 465
Question
MCQ▾The radius of the cylinder whose lateral surface area is 520 and height 5 cm, is________.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 12 cm | |
b. | 14 cm | |
c. | 17 cm | |
d. | 11 cm | |
Question 466
Question
MCQ▾Surface area of a cube with edge = 1.2 cm is________.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ||
b. | ||
c. | ||
d. | ||
Question 467
Question
MCQ▾Three solid cubes of sides 1 cm, 6 cm and 8 cm are melted to form a new cube. Find the surface area of the cube so formed.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ||
b. | ||
c. | ||
d. | ||
Question 468
Question
MCQ▾The ratio of areas of two squares, one having triple its diagonals than the other is________.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 2: 3 | |
b. | 2: 9 | |
c. | 9: 1 | |
d. | 5: 3 | |
Question 469
Question
MCQ▾The ratio of areas of two squares, one having double its diagonals than the other is________.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 4: 1 | |
b. | 9: 1 | |
c. | 2: 3 | |
d. | 2: 9 | |
Question 470
Question
MCQ▾Three cubes whose edges are 1 cm, 6 cm, and 8 cm respectively are melted without any loss of metal into a single cube. The edge of new cube is________.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ||
b. | ||
c. | ||
d. | ||
Question 471
Question
MCQ▾What is the ratio of the perimeter of the shaded region to the circumference of the circle?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ||
b. | ||
c. | ||
d. | ||