If a clock strikes 12 in 33 seconds, it will strike 6 in how many seconds?
Choose the correct choice from the following answers
A) 33 ⁄ 2
B) 15
C) 12
D) 22
E) none of these

Rationale: in order to strike 12 , there are 11 intervals of equal time = 33 ⁄ 11 = 3 seconds each therefore , to strike 6 it has 5 equal intervals , it requires 5 × 3 = 15 sec . answer b
Answer: B