MCQ
If $7\text{x}+3<5\text{x}+9$ then $\text{x}\in$
- A$\big(-\infty, 3\big]$
- B$\big(-\infty,\infty\big)$
- C$\big(-\infty, 3\big)$
- D$\big[3,\infty\big)$
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Given 5 different green dyes, four different blue dyes and three different red dyes, the number of combinations of dyes which can be chosen taking at least one green and one blue dye is.
[Hint: Possible numbers of choosing or not choosing 5 green dyes, 4 blue dyes and 3 red dyes are 25 , 24 and 23 , respectively.]
One coin is tossed once. Find the probability of getting A head.