Hard· Fundamental principle of counting· +4 / 0
The total number of four digit numbers such that each of the first three digits is divisible by the last digit, is equal to ______.
Find the number of five-digit numbers divisible by 6 that can be formed using the digits 3,6,1,7,2,5 without repetition.
JEE Mains 2022, June 28 - Shift 1 · Hard
Let b_1b_2b_3b_4 be a 4 -element permutation with b_i\1,2,3,,100\ for 1 i4 and b_i b_j for i j , such that either b_1,b_2,b_3 are…
JEE Mains 2022 June 29 Shift 1 · Hard