EASY
CAT
IMPORTANT
Earn 100

The product of a natural number with the number obtained by writing the same digits in the reverse order is 2430. Find the numbers.

50% studentsanswered this correctly

Important Questions on Number Systems

EASY
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 1 - Number Systems>Level of Difficulty>Q 58
Find the two natural numbers whose difference is 66, such that their least common multiple is 360.
EASY
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 1 - Number Systems>Level of Difficulty>Q 59
Find the pairs of natural numbers whose least common multiple is 78, and the greatest common divisor is 13.
EASY
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 1 - Number Systems>Level of Difficulty>Q 60
Find two natural numbers whose sum is 85, such that their least common multiple is 102.
EASY
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 1 - Number Systems>Level of Difficulty>Q 61
Find the pairs of natural numbers, the difference of whose squares is 55.
EASY
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 1 - Number Systems>Level of Difficulty>Q 62
Which of these is the greatest?
EASY
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 1 - Number Systems>Level of Difficulty>Q 63
Is it possible for a common fraction whose numerator is less than the denominator to be equal to a fraction whose numerator is greater than the denominator?
EASY
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 1 - Number Systems>Level of Difficulty>Q 64
What digit should be put in the place of c in 38c to make it divisible by 2, 3, 4, and 6?
EASY
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 1 - Number Systems>Level of Difficulty>Q 65
Find the HCF and LCM of the following numbers: 54, 81, 135, and 189.