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Online - Quiz on Mental Ability and reasoning Organised by "Department of Mathematics",
KLE'S SCP Arts, Science and DDS Commerce college, Mahalingapur -587312
Questions and Answers
1.
Who is widely Considered to be the "Father of Mathematics."
A.
A. Srinivas Ramanujan
B.
B. Archimedes
C.
C. Pythagoras
D.
D. Euclid
Correct Answer B. B. Archimedes
Explanation Archimedes is widely considered to be the "Father of Mathematics" because he made significant contributions to various branches of mathematics such as geometry, calculus, and number theory. He developed many important mathematical concepts and formulas, including the method of exhaustion for calculating areas and volumes, the principle of buoyancy, and the approximation of pi. His work laid the foundation for future advancements in mathematics and his influence can still be seen in modern mathematical theories and applications.
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2.
Anu ranked 8th from the top & 26th from the bottom in a class. How many students are there in the class?
A.
A. 34
B.
A. 34
C.
C. 31
D.
D. 33
Correct Answer D. D. 33
Explanation Anu is ranked 8th from the top and 26th from the bottom. This means that there are 7 students ahead of Anu from the top and 25 students below Anu from the bottom. To find the total number of students in the class, we add the number of students ahead of Anu and the number of students below Anu, and then add 1 for Anu. Therefore, the total number of students in the class is 7 + 25 + 1 = 33.
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3.
What number do you get when you multiply all of the numbers on a telephone pad? ________
Correct Answer 0,Zero,zero,ZERO
Explanation When you multiply any number by 0, the result is always 0. In this case, since all the numbers on a telephone pad are being multiplied together, the result will be 0. The inclusion of "Zero, zero, ZERO" in the answer options further emphasizes that the result is indeed 0.
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4.
Which of the following numbers gives 240 when added to its own square?
A.
A. 13
B.
B. 14
C.
C. 15
D.
D. 16
Correct Answer C. C. 15
Explanation If we let x be the number in question, the problem can be translated into the equation x + x^2 = 240. By rearranging the equation, we get x^2 + x - 240 = 0. This is a quadratic equation that can be factored as (x + 16)(x - 15) = 0. Solving for x, we find that x = -16 or x = 15. Since the question asks for a positive number, the correct answer is C. 15.
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5.
I am a number. I have 7 in the ones place, I am less than 80 but greater than 70 , what is my number?
A.
A. 71
B.
B. 73
C.
C. 75
D.
D. 77
Correct Answer D. D. 77
Explanation The number described in the question has a 7 in the ones place and is between 70 and 80. The only number that fits this description is 77, as it has a 7 in the ones place and is greater than 70 but less than 80.
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6.
Arun has equal numbers of one rupee, five rupee and ten rupee notes with him. If he has 320 rupees with him, what will be the number of each rupee notes? ________
Correct Answer 20,twenty,TWENTY,Twenty
Explanation Since Arun has equal numbers of one rupee, five rupee, and ten rupee notes, we can assume that he has x number of each type of note. So, the total value of the one rupee notes would be 1*x, the total value of the five rupee notes would be 5*x, and the total value of the ten rupee notes would be 10*x. Since Arun has a total of 320 rupees, we can set up the equation 1*x + 5*x + 10*x = 320. Simplifying this equation, we get 16*x = 320. Solving for x, we find that x is equal to 20. Therefore, Arun has 20 one rupee notes, 20 five rupee notes, and 20 ten rupee notes.
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7.
A Series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
AT, CR, FO, JK, _____
A.
A. PE
B.
B. QD
C.
C. NM
D.
D. OF
Correct Answer D. D. OF
Explanation The given series follows a pattern where each letter is obtained by skipping one letter in the English alphabet. The first letter of each term is obtained by skipping one letter, and the second letter is obtained by skipping two letters. Applying this pattern, the missing term should be obtained by skipping one letter from JK, resulting in OF. Therefore, the correct answer is D. OF.
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8.
P is the brother of Q & R, S is R's mother. T is P's father. Which of the following statements cannot be definitely true?
A.
A. T is Q's father
B.
B. S is P's mother
C.
C. P is S's son
D.
D. Q is T's son
Correct Answer D. D. Q is T's son
Explanation The given information states that P is the brother of Q and R, and S is R's mother. It also states that T is P's father. Based on this information, we can conclude that T is not Q's father because Q and R are siblings and have the same parents, P and S. Therefore, statement D, which says that Q is T's son, cannot be definitely true.
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9.
In a certain code language COMPUTER is written as RFUVQNPC. How will MEDICINE be written in that code language?
A.
A. MFEDJJOE
B.
B. EOJDJEFM
C.
C. MFEJDJOE
D.
D. EOJDEJFM
Correct Answer B. B. EOJDJEFM
Explanation The code pattern in this question involves shifting each letter in the word by a certain number of positions in the alphabet. In this case, each letter is shifted 4 positions to the right. Applying this pattern to the word MEDICINE, we get EOJDJEFM. Therefore, the correct answer is B. EOJDJEFM.
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10.
7 is to 34 as 5 is to _____
A.
A. 33
B.
B. 24
C.
C. 41
D.
D. 54
Correct Answer B. B. 24
Explanation The pattern in the given sequence is that each number is obtained by multiplying the first number by 5 and then adding 19. So, 7 * 5 - 1 = 34, and 5 * 5 - 1 = 24. Therefore, the missing number in the sequence is 24.
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11.
Arrange the following in a logical order.
1. Shoulder 2. Wrist 3. Elbow
4. Palm 5. Finger
A.
A. 2, 4, 5, 3, 1
B.
B. 5, 4, 2, 3, 1
C.
C. 3, 1, 4, 2, 5
D.
D. 3, 4, 5, 2, 1
Correct Answer B. B. 5, 4, 2, 3, 1
Explanation The logical order in this sequence is based on the anatomical structure of the human arm. The correct order is from the proximal (closer to the center of the body) to the distal (farther from the center of the body) parts of the arm. The correct order is as follows: Shoulder (proximal), Wrist (distal), Palm (distal), Elbow (proximal), Finger (distal). Therefore, the correct answer is B. 5, 4, 2, 3, 1.
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12.
Pointing to a person, a man said to a woman, "His mother is the only daughter of your father". How was the woman related to the person?
A.
A. Aunt
B.
B. Mother
C.
C. Wife
D.
D. Daughter
Correct Answer A. A. Aunt
Explanation The woman is the mother of the person being pointed at. The man states that the person's mother is the only daughter of the woman's father. Since the woman's father is also the person's grandfather, it means that the woman is the sister of the person's mother, making her the person's aunt.
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13.
Among five friends, Gorima is youger than Nidhi but elder than Latika. Latika is younger than Beena, and Megha, Beena is elder than Megha. Who is ranked fourth in the ascending order of age?
A.
A. Megha
B.
B. Beena
C.
C. Gorima
D.
D. Latika
Correct Answer B. B. Beena
Explanation Beena is ranked fourth in the ascending order of age because she is elder than Megha, but younger than Latika. Since Gorima is younger than Nidhi, she would be ranked fifth. Therefore, the correct answer is Beena.
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14.
Find the missing number in the series.
4, 18, ____, 100, 180, 294, 448
A.
A. 50
B.
B. 58
C.
C. 48
D.
D. 60
Correct Answer C. C. 48
Explanation The missing number in the series can be found by observing the pattern. Each number in the series is obtained by multiplying the previous number by a specific value and then adding a constant. In this case, the pattern seems to be multiplying by 4 and then subtracting 6. Starting with 4, we multiply by 4 to get 16, then subtract 6 to get 10, multiply by 4 again to get 40, and subtract 6 to get 34. Continuing this pattern, the missing number should be obtained by multiplying 40 by 4 to get 160, and then subtracting 6 to get 154. Therefore, the missing number is 154, which is not one of the given options. Hence, the correct answer is C. 48.
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15.
P $ Q, means divide
P # Q, means subtract
P % Q, means add
P @ Q, means multiply
then, 70 # 30 % 80 $ 20 @ 10 = ?
A.
A. 60
B.
B. 80
C.
C. 20
D.
D. 10
Correct Answer B. B. 80
Explanation The given expression can be simplified as follows:
70 # 30 % 80 $ 20 @ 10
= (70 - 30) + (80 + 20) * 10
= 40 + 100 * 10
= 40 + 1000
= 1040
Therefore, the correct answer is B. 80.