Question

Hello

For a wedding photoshoot, Ravi needs two bulbs around a mirror. There are only two slots for the light bulbs on either side. He has eight bulbs out of which four are working, and the other four are not working. He needs to try it out to find a pair that lights up the mirror properly. What is the least number of trials he needs for proper lighting?​
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Answer 1

Answer:

let's take all bulbs as

1:2:3:4

ok ????

then see its asking the number of trial so we have to write the answer as what t1then see it's asking the number of trial so we have to write the answer as 51 think soo coz

see

1:2

3:4

4:1

2:3

so total outcome 4

as its asking that he want pair of proper lighting bulbs .

the answer is 4

Answer 2

Step-by-step explanation:

GeeksforGeeks

randomly select 6 bulbs from the lot and put it on the beam balance. If it is found to be equal then we just have to compare the left two bulbs ...