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- Question
Which set represents a pythagorean triple?
Options- A. 68, 72, 81
- B. 35, 38, 42
- C. 27, 38, 42
- D. 33, 44, 55
- Correct Answer
- 33, 44, 55
ExplanationA Pythagorean triple consists of three positive integers a, b, and c, such that a² + b² = c².
Here we know, that 3, 4, 5 are pythagorean triplets as 25 = 9 + 16. Hence, its multiple will also be a pythagorean triple.
In the options given, (3 x 11 , 4 x 11 , 5 x 11) = 33, 44, 55 is a pythagorean triplet.
- 1. Two angles whose sum is 90 are
Options- A. Supplementary angles
- B. corresponding angles
- C. Complimentary angles
- D. Alternate angles Discuss
- 2. Multiplicative inverse of 7?
Options- A. 1
- B. -1/7
- C. 0
- D. 1/7 Discuss
- 3. What is the product of a number and its reciprocal?
Options- A. 0
- B. 1
- C. -ve of the number
- D. the number itself Discuss
- 4. A plane is an undefined term because it
Options- A. is a flat surface that extends indefinitely in all directions
- B. is where other geometric shapes can be constructed
- C. is described generally, not using a formal definition
- D. can be named using three noncollinear points Discuss
- 5. In a class there are certain no. of boys and girls. If 15 girls are absent then no. of boys will be twice that of girls. If 45 boys are absent then girls strength will be 5 times that of boys. Find number of boys actually present ?
Options- A. 40
- B. 50
- C. 55
- D. 35 Discuss
- 6. Which letter has at least one line of symmetry?
Options- A. A
- B. C
- C. O
- D. All of the above Discuss
- 7. A tangent contains at most how many chords?
Options- A. 1
- B. 2
- C. 3
- D. 0 Discuss
- 8. Weight of Sona is four times that of Mona. Weight of Mona is 2.5 times of Hona. Weight of Hona is 1.5 times of Dhona. Weight of Dhona is 2.5 times of Rona. Who is the heaviest?
Options- A. Mona
- B. Sona
- C. Hona
- D. Dhona Discuss
- 9. In the following question, correct the equation by interchanging two signs. 4 ? 10 x 5 + 9 ÷ 3 = 51
Options- A. x and ?
- B. ÷ and x
- C. + and ?
- D. ? and ÷ Discuss
- 10. The weights of 4 boxes are 30, 70, 60 and 20 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes and in a combination a box can be used only once?
Options- A. 180
- B. 190
- C. 120
- D. 150 Discuss
Arithmetic Reasoning problems
Search Results
Correct Answer: Complimentary angles
Explanation:
Complimentary angles are those two angles whose sum is 90 whereas two angles whose sum is 180 are called Supplementary angles.
Correct Answer: 1/7
Explanation:
Multiplicative inverse is nothing but a reciprocal of a number.
It is defined as one of a pair of numbers that when multiplied with another number equals the number 1.
Multiplicative inverse or reciprocal of 7 is
7 x n = 1
=> n = 1/7.
Hence, Multiplicative inverse or reciprocal of 7 is 1/7.
Correct Answer: 1
Explanation:
The product of a number and its reciprocal is always equals to 1.
For Example : Let the number be 4.
Now, its reciprocal is 1/4
Hence, required product = 4 x 1/4 = 1.
Now, take the number as -15.
Then its reciprocal is -1/15
Required product = -15 x -1/15 = 1.
Hence, the product of a number and its reciprocal is 1.
Correct Answer: is described generally, not using a formal definition
Explanation:
In geometry, we can define plane as a flat surface with no thickness.
The surface extends with no ends.
A plane does not have any edges even if we draw it on paper with edges, it does't mean it has edges.
Hence, A plane is an undefined term because it is described generally, not using a formal definition.
Correct Answer: 50
Explanation:
15 girls are absent => b = 2(g-15)...... eqn...(1)
45 boys are absent => g - 15 = 5(b-45).....eqn...(2)
=> g = 5(b-45) + 15
=> b = 2((5(b-45)+15)-15)
=> b = 2(5b - 225 + 15 - 15)
=> b = 2(5b-225)
=> b = 10b - 450
=> 9b = 450
=> b = 50
so from equation(2)
g - 15 = 5(b - 45)
=> g - 15 = 5(50-45)
=> g - 15 = 5(5)
=> g = 25 + 15
=> g = 40
Therefore, the number of boys = 50 and girls = 40
Correct Answer: All of the above
Explanation:
The letter A has a vertical axis of symmetry.
The letter C has a horizontal axis of symmetry.
The letter O has more than one axis of symmetry, including vertical axis and horizontal axis.
Correct Answer: 0
Explanation:
A tangent contains ZERO chords, as it touches the circle at only one point.
Hence, it does not contain any chord.
Correct Answer: Sona
Correct Answer: + and ?
Correct Answer: 190
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