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Earn 100

A number when divided by 391 gives a remainder of 49. Find the remainder when it is divided by 39.

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Important Questions on Numbers and Their Properties

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Quantitative Aptitude for the CAT>Chapter 1 - Numbers and Their Properties>Practice Exercises>Q 17
p,q and r are prime numbers such that p<q<r<13. In how many cases would (p+q+r) also be a prime number ?
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Quantitative Aptitude for the CAT>Chapter 1 - Numbers and Their Properties>Practice Exercises>Q 18
How many distinct factors of 1600 are perfect cubes?
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Quantitative Aptitude for the CAT>Chapter 1 - Numbers and Their Properties>Practice Exercises>Q 19
The LCM of 96,144 and N is 576. If their HCF is 48, then which of the following can be one of the values of N?
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Quantitative Aptitude for the CAT>Chapter 1 - Numbers and Their Properties>Practice Exercises>Q 20
If p and q are consecutive natural numbers (in increasing order), then which of the following is true? 
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Quantitative Aptitude for the CAT>Chapter 1 - Numbers and Their Properties>Practice Exercises>Q 21
1721+1921 is not divisible by:
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Quantitative Aptitude for the CAT>Chapter 1 - Numbers and Their Properties>Practice Exercises>Q 22
Which of the following will divide 1112296-1?
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Quantitative Aptitude for the CAT>Chapter 1 - Numbers and Their Properties>Practice Exercises>Q 23
If a, b, c and d are consecutive odd numbers, then a2+b2+c2+d2 is always divisible by:
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Quantitative Aptitude for the CAT>Chapter 1 - Numbers and Their Properties>Practice Exercises>Q 24
Three bells toll at intervals of 14, 21 and 42 min, respectively. If they toll together at 11 : 22 am, when will they toll together for the first time after that?