Question 5

If P(E) = 0.05, what is the probability of ‘not E’?

Answer

P (E) + P (not E) = 1

0.05 + P (not E) = 1

P (Not E) = 1 – 0.05 = 0.95

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A cottage industry produces a certain number of pottery articles in a day. It was observed on a particular day that the cost of production of each article (in rupees) was 3 more than twice the number of articles produced on that day. If the total cost of production on that day was Rs 90, find the number of articles produced and the cost of each article.

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Find the zeroes of the following quadratic polynomials and verify the relationship between the zeroes and the coefficients.

(i) x

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Refer to Example 13. (i) Complete the following table:

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Find two numbers whose sum is 27 and product is 182.

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(i) 26 and 91 (ii) 510 and 92 (iii) 336 and 54 - Q:-
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- Q:-
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^{2}+ 3x + 1 = (x – 2)^{2}(vii) (x + 2)^{3}= 2x (x2 – 1) (viii) x^{3}– 4x^{2}– x + 1 = (x – 2)^{3} - Q:-
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- Q:-
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- Q:-
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Find the number of blue balls in the jar.

- NCERT Chapter