CAT 2020 Slot 2 QA Q26 Permutations & Probability

Question 26 of the Quantitative Ability (QA) section, CAT 2020 Slot 2, with CAT's official answer.

How many 4-digit numbers, each greater than 1000 and each having all four digits distinct, are there with 7 coming before 3?

TITA: type in the answer. There are no options and no negative marking.

Answer: 315 Permutations & Probability TITA

A worked solution for this question is being written. Meanwhile, practise it in a timed mock and see how other aspirants did.

Same concept in other years

See every question on Counting numbers with distinct digits under conditions.

More Permutations & Probability questions from CAT

All 21 Permutations & Probability questions asked since 2017.