# Quantitative Aptitude – Modern Maths – P&C – How many four digit numbers

January 1st, 2020 by

Quantitative Aptitude - Modern Maths - P&C - How many four digit numbers Quantitative Aptitude - Modern Maths - Permutation and Combination Question How many four digit numbers, which are divisible by 6, can be formed using the digits 0, 2, 3, 4, 6, such that no digit is used more than once and 0 does not occur in the left-most position? Answer 50 Solution From CAT 2017 - Quantitative Aptitude - Modern Maths - Permutation and Combination, we can see that, For a number to be divisible by 6, it should have both 2 and 3 as factors.

# Quantitative Aptitude – Modern Maths – P&C – In how many ways can 8 identical

January 1st, 2020 by

Quantitative Aptitude - Modern Maths - P&C - In how many ways can 8 identical Quantitative Aptitude - Modern Maths - Permutation and Combination Question In how many ways can 8 identical pens be distributed among Amal, Bimal, and Kamal so that Amal gets at least 1 pen, Bimal gets at least 2 pens, and Kamal gets at least 3 pens? Answer 6 Solution From CAT 2017 - Quantitative Aptitude - Modern Maths - Permutation and Combination, we can see that, Number of pens that Amal gets = a+1 Number of pens that Bimal gets = b+2 Number of pe

# Quantitative Aptitude – Modern Maths – Permutation and Combination – In how many ways can 7 identical erasers

December 30th, 2019 by

Quantitative Aptitude - Modern Maths - Permutation and Combination - In how many ways can 7 identical erasers Quantitative Aptitude - Modern Maths - Permutation and Combination Question In how many ways can 7 identical erasers be distributed among 4 kids in such a way that each kid gets at least one eraser but nobody gets more than 3 erasers? A) 16 B) 20 C) 14 D) 15 Answer Option (A) Solution From CAT 2017 - Quantitative Aptitude - Modern Maths - Permutation and Combination, we can see that, a + b + c + d = 7 Since, each

# Quantitative Aptitude – Modern Maths – P and C – How many two-digit numbers

December 23rd, 2019 by

Quantitative Aptitude – Modern Maths - P and C – How many two-digit numbers Slot -2 – Quantitative Aptitude – Modern Maths - P & C – How many two-digit numbers  How many two-digit numbers, with a non-zero digit in the units place, are there which are more than thrice the number formed by interchanging the positions of its digits? a) 6 b) 8 c) 7 d) 5 Answer: 6 Solution: Let the number is ab so 10a+b >3(10b+a) 7a>29b a/b>29/7 So the possible pair of (a,b) are (5,1), (6,1), (7,1) ,

# Quantitative Aptitude – Modern Maths – Permutation and Combination – In a tournament, there are 43

December 22nd, 2019 by

Quantitative Aptitude – Modern Maths - Permutation and Combination – In a tournament, there are 43 Slot -2 – Quantitative Aptitude – Modern Maths - Permutation and Combination – In a tournament, there are 43 junior In a tournament, there are 43 junior level and 51 senior level participants. Each pair of juniors play one match. Each pair of seniors play one match. There is no junior versus senior match. The number of girl versus girl matches in junior level is 153, while the number of boy versus boy matches in senior level is 276.