Aptitude Interview Question:

Entry ticket to an exhibition ranges from 1p to 7p. You need to provide exact change at the counter. You have 7p coin. In how many parts will you divide 7p so that you will provide the exact change required and carry as less coins as possible?
a) 8
b) 7
c) 5
d) 3

Submitted by: Administrator

d) 3

Divide the 7p into 1p, 2p, and 4p.

1p = 1p
2p = 2p
3p = 1p + 2p
4p = 4p
5p = 4p + 1p
6p = 4p + 2p
7p = 4p + 2p + 1p
Submitted by: Administrator