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Quantitative Aptitude :: Number System Problems And Answers


Number System Formulaes

Quantitative Aptitude
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31. Find the greatest number which divides 284, 678 and 1618 leaves the same remainder in each case.
A. 2 B. 3
C. 4 D. 5
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32. Find the least number which is exactly divisible by 10, 12, 14, 16 and 18.
A. 5010 B. 5030
C. 5040 D. 5020
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33. Find the least number which when divided by 35, 45 and 55 leaves remainder 20, 30 and 40 respectively
A. 3450 B. 3250
C. 3420 D. 3410
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34. Find the greatest number of the five digits which is exactly divisible by 16, 25, 28 and 32.
A. 95200 B. 99550
C. 999560 D. 99200
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35. Find the least number of four digits which when divided by 4, 5 and 6 leaving the remaainder 2 in each case.
A. 1022 B. 1020
C. 1032 D. 1002
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36. Four bells first begin to toll together with an intervals of 5, 10, 15 and 20 sec. How many times does they toll together in an hour.
A. 60 B. 59
C. 61 D. 58
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37. If x2 + kx - 3, is divisible by (x - 1), What is the value of k
A. -1 B. 1
C. 2 D. -1
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38. Find the maximum power of 5 contained in 200!
A. 40 B. 50
C. 48 D. 49
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39. Find the difference between the local value and face value of 5 in the numeral 475240 is 
A. 4990 B. 4890
C. 4995 D. 4885
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40. What is the unit digit in the product (245 x 122 x 431)?
A. 2 B. 3
C. 0 D. Can't be determined 
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Related Topics

Simplication
Clock
Simple Interest
Permutations
Percentage
Compound Interest



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