UPSC Prelims 2023 · CSAT (Paper 2) · Q47
Basic Numeracy
Medium · Permutations / digit sums
What is the sum of all 4-digit numbers less than 3000 formed by the digits 2, 3, 5 and 7, where none of the digits is repeated?
UPSC Prelims 2023 · CSAT (Paper 2) · Q47
Medium · Permutations / digit sums
What is the sum of all 4-digit numbers less than 3000 formed by the digits 2, 3, 5 and 7, where none of the digits is repeated?