Question

2. Name the line given in all possible (twelve) ways, choosing only two letters are
time from the four given.
A B C D​

Answer 1

Answer:

abcd

dcba

acbd

dacb

bacd

dcab

cabd

cadb

adcb

dbac

cadb

cdba

Answer 2

Answer:

ABCD

DCBA

CBDA

BACD

CABD

ACDB

DCAB

CABD