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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.  

How many lights were switched ON after the 9th turn?  

twelve years later,age of tanu will be equal to the present age of sakhsam.Sum of sakhsam's age 5 years later and tanu's age 7 years later is 84 .if age of Ram is 60% of the present age of tanu then what will be raam's age after 10 years.

Hey I have just enrolled and iam not able to figure out stuffs so can u pls instruct me

how can i change app lanaguage ..or mocktest language ...???

are the questions appearing in practice section same as the ones in daily target for CAT preparation?Is it sufficient to solve practice questions(if they are going to subsequently appear in daily target), I would sove only the practice questions, please suggest.

sum of 1 to 100

Hi, I am an MBA aspirant. currently, I am pursuing BBA(final sem) and till now my score is 7.5 CGPA. My 10th 85%, 12th 63%. Is there any chance to get a call from IIMs?

how to improve inference based questions

where can i find the answers for doubts posted ? is there any special area where all the question posted by me can be found or i need to see the topics individually where i have posted question

I am a b com student
so which category should I choose