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Match the LIST-I with LIST-II

LIST-I (Number)LIST-II (Unit digit of the number)
A. 44254^{425}I. 6
B. 410244^{1024}II. 4
C. 13363×449133^{63} \times 4^{49}III. 3
D. 3813^{81}IV. 8

Choose the correct answer from the options given below:

Solution

✅ Correct Option: 2

Powers of 4 end in 4 for odd exponents and 6 for even exponents.

A: 44254^{425}, odd power, ends in 4 (II).

B: 410244^{1024}, even power, ends in 6 (I).

C: unit digit of 3 cycles 3, 9, 7, 1; 6363 leaves remainder 3, giving 7. Times 4 gives 28, so unit digit 8 (IV).

D: 8181 leaves remainder 1, so 3813^{81} ends in 3 (III).

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