Question
A is trying to break a bulb by throwing balls at it. If
he hits the bulb 4 times in every 11 throws and bulb breaks 3 times out of 7 hits, then find the probability of A breaking the bulb.Solution
Probability of A hitting the bulb = 4/11 Probability of the bulb being broke on getting hit = 3/7 Probability of A breaking the bulb = (4/11) × (3/7) = 12/77
- Find the fraction which is greater than (5/7) but less than (9/7).
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A 150-litre solution of juice and water contains the two in the ratio 3:2, respectively. If 30% of the solution is replaced with water, what will be the...
1. Letter
2. Word
3. Chapter
4. Paragraph
5. Sentence
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