(a) A 6-digit number is to be formed from the digits 1, 2, 3, 4, 5, 6, 7, 8, 9. No digit may be used more than once in any 6-digit number. Find how many 6-digit numbers can be formed in the following cases. (i) There are no further restrictions. [1] (ii) The 6-digit number includes the digit 4. [2] (b) A class contains 10 girls and 12 boys. A group of 6 students is to be selected from the class. There must be at least 2 girls and at least 2 boys in the group. Find the number of different selections that can be made. [3]

2026 - F/M - 0606/22 | Q4

0/11

0 correct · 0 wrong

(a) A 6-digit number is to be formed from the digits 1, 2...