There were 12 lights in a row in a room. Initially they were all switched OFF. Anil decided to play a game. He switched ON all the lights. In the next turn he switched OFF every second light. Then, he switched ON every third light (if it was switched OFF) and so on. He continued to play similarly for 12 turns.
Type : MCQ
When was the second time that there were 6 lights switched ON and 6 lights switched OFF?
Type : MCQ
In how many turns were more lights switched OFF than switched ON?
Type : MCQ
How many lights were switched ON after the 9th turn?
Type : MCQ
In how many turns did the pattern of lights i.e., switched ON or switched OFF, remain the same as compared to the previous turn?
Type : MCQ
Which of the following could not be the difference between the number of lights switched ON and the number of lights switched OFF after any round?
Hi there!
Welcome to Alchemist.
The pioneers of Personalised Learning for Test Prep in india.
We will be happy to answer all your queries.
Simply choose an option below:
A. Call now on +918604860461
B. Chat on whatsapp now.
C. Book a FREE counselling session (pls. fill up the form below)
