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21000+ Important MCQs for UPSC
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Q) The HCF and LCM of two numbers are 18 and 3780 respectively. if one of them is 540 then the second one is
(A) 142
(B) 126
(C) 118
(D) 112
Correct Answer - Option
(B)
Explanation :
Hint: num1 x num2 = HCF x LCM,
Q) The two numbers are in the ratio of 2 : 3 and the product of their HCF and LCM is 33750 , then sum of number is
(A) 250
(B) 425
(C) 325
(D) 375
Correct Answer - Option
(D)
No Explanation found. Add Explanation and get +2 points.
Q) The least number which when divided by 20, 25, 35 and 40 leaves the remainder 14, 19, 29 and 34 respectively, is
(A) 1664
(B) 1406
(C) 1404
(D) 1394
Correct Answer - Option
(D)
No Explanation found. Add Explanation and get +2 points.
Q) The largest number which divides 25, 73 and 97 to leave the same remainder in each case each is
(A) 24
(B) 23
(C) 21
(D) 6
Correct Answer - Option
(A)
No Explanation found. Add Explanation and get +2 points.
Q) A circular plot covers an area of 154 cm². how much long wire is required for fencing the plot.
(A) 40 m
(B) 42 m
(C) 44 m
(D) 45 m
Correct Answer - Option
(C)
No Explanation found. Add Explanation and get +2 points.
Q) The largest number of five digits when it is a perfect square is
(A) 99967
(B) 99764
(C) 99856
(D) 99999
Correct Answer - Option
(C)
No Explanation found. Add Explanation and get +2 points.
Q) The least number to be added to 269 to make it a perfect square
(A) 31
(B) 16
(C) 7
(D) 20
Correct Answer - Option
(D)
No Explanation found. Add Explanation and get +2 points.
Q) Find the least number which when subtracted from 1850 makes it a perfect square
Correct Answer - Option
(C)
No Explanation found. Add Explanation and get +2 points.
Q) Which of the following is the oldest monument?
(A) Ajanta
(B) Qutub Minar
(C) Taj Mahal
(D) Khajuraho
Correct Answer - Option
(A)
No Explanation found. Add Explanation and get +2 points.
Q) Who was the founder of the second Afghan Empire in India?
(A) Bahlol Lodhi
(B) Ibrahim Lodhi
(C) Islam Shah
(D) Sher Shah Suri
Correct Answer - Option
(D)
No Explanation found. Add Explanation and get +2 points.
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