Question
A is trying to break a bulb by throwing balls at it. If
he hits the bulb 3 times in every 5 throws and bulb breaks 3 times out of 12 hits, then find the probability of A breaking the bulb.Solution
Probability of A hitting the bulb = 3/5 Probability of the bulb being broke on getting hit = 3/12 = 1/4 Probability of A breaking the bulb = (3/5) × (1/4) = 3/20
√(3x-2)+ √(3x+2) = 4+ 2√5 then value of x is.
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