Question
Some books were distributed among (2x + 4) students such
that each student received 5 books. If there had been 6 students more, then books received by each student would have been 1 less. Find the value of ‘x’.Solution
According to the question, (2x + 4) × 5 = (2x + 4 + 6) × 4 Or, 10x + 20 = 8x + 40 Or, 2x = 20 Or, x = 10
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Compute P(A∩B), if P(B) = 0.8 and P(AǀB) = 0.35
I). p 2  – 17p + 70 = 0
II). q 2  – 25q + 154 = 0
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