A shopkeeper has 15 models of cup and 9 models of saucer. In how many ways can he make a pair of cup

M4maths Previous Puzzles

23 Aug 2021 Combination

A shopkeeper has 15 models of cup and 9 models of saucer. In how many ways can he make a pair of cup and saucer?

OPtion

1) 100
2) 80
3) 110
4) 130
5) 122
6) 88
7) 104
8) 135
9) 116
10) None of the above

Solution

He has 15 patterns of cup and 9 model of saucer
A cup can be selected in 15 ways.
A saucer can be selected in 9 ways.
Hence one cup and one saucer can be selected in 15×9 ways =135 ways

Correct Option: 8 Best Solution (3)