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प्रश्न
Select the correct answer from the given alternatives.
A question paper has two parts, A and B, each containing 10 questions. If a student has to choose 8 from part A and 5 from part B, In how many ways can he choose the questions?
विकल्प
320
750
40
11340
उत्तर
11340
Explanation;
Number of ways to choose 8 questions from
Part A and 5 from Part B = 10C8 × 10C5
= 10C2 × 10C5
= 45 × 252
= 11340
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