Directions: Read the following information to answer the question.
Answer:3
Solution :1!=1,2!=2,3!=6,4!=24,5!=120 factorials starting from 5! And end with digit 0 will have at least one 2 and one 5 in their product so they don’t contribute in the last digit.
Last digit=1+2+6+4+0=13=3(last digit) hence proved.
Directions: Read the following information to answer the question.
Answer:3
Explanation:327/9 gives 3 remainder 422/9 gives 8 remainder and 955/9 gives 1 as a remainder.adding all 3 remainders wer Have 12 whwn divided by 9 it gives 3.
Hence proved.
Directions: Read the following information to answer the question.
Answer:4
273/5 gives 3 as a remainder,549/5 gives 4 as a remainder,977/5 gives 2 as remainder then (3*4*2=24).when 24/5 gives 4 as a remainder.
Hence proved.
Directions: Read the following information to answer the question.
Answer:2
Explanation: 2^1=2 so 2/5 gives 2 as a remainder.
2^2=4 ; 4/5 gives 4 as a remainder. 2^3=8 gives 3 as a remainder.2^54=16gives 1 as a remainder.so cyclicity is of4.
.625/4=1 remainder son 2^1=2…
Directions: Read the following information to answer the question.
(8^5)/7…..here 8/7=1 remainder.