state gov Allahabad High Court Group D Mock Test Series 2024 Quantitative Aptitude Permutation and Combination
Vehicle number plates have two letters out of the 26 letters of the English alphabet followed by four decimal digits. How many different number plates are possible if repetition of letters and digits is allowed?
1
26 × 25 × 10 × 9 × 8 × 7
2
26 × 26 × 10 × 10 × 10 × 10
3
(26 × 25 × 24 × 23 × 10 × 9)/(4× 3 × 2 × 2)
4
26 × 25 × 24 × 23 × 10 × 9