If 3 pens are drawn at random what is the probability that all are black?
Let S be the sample space. Then, N(S) = number of ways of drawing 3 pens out of 11 = ¹¹C₃ = (11 ×10 ×9)/(3 ×2 ×1) = 165 Let E = event of getting 3 from 5 black pens. n(E) = ⁵C₃ = (5 × 4 )/(2 ×1) = 10 n(P) = (n(E))/(n(S)) = 10/165 = 2/33
For higher yield and better grain quality PR 124 and PR 126 transplanting should be done from
In a mixed forest the most important species is referred as:
Late Blight of Potato is caused by
The monetary value of tractor decreases over time due to use, wear and tear. This is known as ____
Which of the following crop responds well to sulphur?
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Where is CFTRI situated?
In paddy, the clipping of tip of seedlings is done as a preventive measure against which pest?
Which of the following is a parasitic weed on pearl millet?
Water level recorder is used in
