CBSE Class 10 Mathematics Standard 2024: question 25
Set in the CBSE Class 10 board exam of 2024, paper 30/5/1, section B, question 25, for 2 marks. Try it first; the hints and our step-by-step solution are below.
Q25 · 2 marks · Very short answerProbability
A carton consists of 60 shirts of which 48 are good, 8 have major defects and 4 have minor defects. Nigam, a trader, will accept the shirts which are good but Anmol, another trader, will only reject the shirts which have major defects. One shirt is drawn at random from the carton. Find the probability that it is acceptable to Anmol.
Source: official question paper from cbse.gov.in (PDF). See it in the full 2024 board paper, set 30/5/1.
Hints
Open one hint at a time and try again before the next.
Hint 1
Which shirts does Anmol reject? All others he accepts.
Hint 2
Count shirts without major defects and divide by the total 60.
Step-by-step solution
Each step shows the marks it earns, as an examiner would award them. Checked by an independent re-solve from the question paper.
- ½ mark
Anmol rejects only shirts with major defects, so he accepts good shirts and those with minor defects: (i.e. ) favourable outcomes.
- 1½ marks
P(shirt acceptable to Anmol)
Answer:
Where the marks are
- Number of shirts acceptable to Anmol = 52 (½ mark)
- Probability (1½ marks)
Revise the chapter
- Chapter: Probability (notes, formulas, where marks are lost and every past question)
- Topic: Probability: Basic Terms and Classical Definition
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The question is transcribed from the official paper; figures are described in words. The solution, hints and chapter tag are ours. Spotted an error? Write tosupport@questionbuddy.in.