A clock takes 5 seconds to strike 5 times at 5 O'clock. How long will it take to strike 9 times at 9 O'clock ?
1
9 seconds
2
10 seconds
3
12 seconds
4
8 seconds
A clock takes 5 seconds to strike 5 times at 5 O'clock. How long will it take to strike 9 times at 9 O'clock ?