Which is the third number to the left of the number which is exactly in the middle of the following sequence of numbers?
1 2 3 4 5 6 7 8 9 2 4 6 8 9 7 5 3 1 __ 9 8 7 6 5 4 3 2 1
Answer: B
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517 325 639 841 792
What will be the first digit of the second highest number after the positions of only the 2nd, 3rd digits within each number are interchanged?
Answer: C
The new numbers formed are 571, 352, 693, 814, 729
The second highest number is 729, its first digit is 7
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Rohan ranks seventh from the top and twenty-sixth from the bottom in a class. How many students are there in the class?
Answer: B
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Manoj and Sachin are ranked seventh and eleventh respectively from the top in a class of 31 students. What will be their respective ranks from the bottom in the class?
Answer: C
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In a class, seven students are standing in a row. Q is standing left to R but right to P. O is standing right to N and left to P. Similarly, S is standing right to R and left to T. Find out who is standing in the middle ?
Answer: A
As from the given conditions;
Order is
N O P Q R S T
Here the student standing in the middle is 'Q'.
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In a row of boys, Punit’s position from the left end is 33rd and Ankit’s position from the right end is 25th. After interchanging their position, Punit’s position becomes 45th from the left end. How many boys are there in the row?
Answer: C
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Nitin ranks 18th in a class of 49 students. What is rank from the last ?
Answer: C
Number students behind the nitin in rank = (49 - 18) = 31
Nitin is 32nd from the last
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Manisha ranked sixteenth from the top and twenty-ninth from the bottom among those who passed an examination. Six boys did not participate in the competition and five failed in it. How many boys were there in the class?
Answer: D
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If it is possible to form a number with the second, the fifth and the eighth digits of the number 31549786, which is the perfect square of a two - digit even number, which of the following will be the second digit of that even number ?
Answer: B
The 2nd, 5th and 8th digits of the number 31549786 are 1, 9 and 6 respectively.
The perfect square of a two - digit even number, formed using the digits 1, 9 and 6 is 196.
And, 14 x 14 = 196
So, the required even number is 14. Clearly, its second digit is 4.
Hence, the answer is (b).
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If the positions of the first and the third digit within each number are interchanged, which of the following will be the third digit of the second lowest number ?
987, 514, 658, 487, 404, 269
Answer: D
According to the question, after the position of the first and third digit interchanged new numbers are
789, 415, 856, 784, 404, 962
962, 856, 789, 784, 404, 415
Here the second lowest number is 404 and the last digit of it is '4'.
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