. There are 17 rooms in a school, every room has two
fans and four LED bulbs. How many switches are
required for the school if every fan requires a switch
and one switch is required for every two bulbs ?
(A) 34
(B) 68
(C) 102
(D) 17
Answers
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Step-by-step explanation:
Total number of rooms=17
Total number of fans=17×2=34
Total no of LED bulbs =17×4=68
Total switches required =34+68/2
=34+34=68
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