Mental Ability-Basic Arithmetic (NCO- Cyber Olympiad Class 9): Questions 43 - 48 of 49
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Question number: 43
» Mental Ability » Basic Arithmetic
Question
Out of pair of complementary angles, one is two- third of the other. Find the angles.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | One Angle = 54°, other Angle = 30° |
|
| b. | One Angle = 54°, other Angle = 36° |
|
| c. | One Angle = 55°, other Angle = 34° |
|
| d. | One Angle = 50°, other Angle = 36° |
|
Question number: 44
» Mental Ability » Basic Arithmetic
Question
The sum of two angles of a triangle is 106° and their difference is 10°, find all the angles of the triangle
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 48°, 58°, 74° |
|
| b. | 50°, 40°, 90° |
|
| c. | 30°, 60°, 90° |
|
| d. | 40°, 50°, 90° |
|
Question number: 45
» Mental Ability » Basic Arithmetic
Question
Find the measure of all the angles of parallelogram, if one angle is 60 ° less than twice the smallest angle.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 60°, 120°, 60°, 120° |
|
| b. | 68°, 112°, 68°, 112° |
|
| c. | 80°, 100°, 80°, 100° |
|
| d. | 36°, 144°, 36°, 144° |
|
Question number: 46
» Mental Ability » Basic Arithmetic
Question
Find the measure of all the angles of parallelogram, if one angle is 45° less than twice the smallest angle.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 75°, 105°, 75°, 105° |
|
| b. | 40°, 140°, 40°, 140° |
|
| c. | 85°, 95°, 85°, 95° |
|
| d. | 65°, 115°, 65°, 115° |
|
Question number: 47
» Mental Ability » Basic Arithmetic
Question
Find the measure of all the angles of parallelogram, if one angle is 24° less than twice the smallest angle.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 60°, 120°, 60°, 120° |
|
| b. | 66°, 114°, 66°, 114° |
|
| c. | 68°, 112°, 68°, 112° |
|
| d. | 56°, 124°, 56°, 124° |
|
Question number: 48
» Mental Ability » Basic Arithmetic
Question
Given, , and find the value of the following expression correct up to three places of decimal: .
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | -0.413 |
|
| b. | 0.213 |
|
| c. | -0.213 |
|
| d. | 0.413 |
|