Question

In a lot of 12 pens 3 pens are defective. If two pens are drawn randomly what is the probability of getting a defective pen and a non-defective pen.​

Answer 1

Step-by-step explanation:

Magnesium chloride has a crystalline structure. The positively charged magnesium ion - Mg+2 and negatively charged chlorine ions Cl- create the ionic bond by attracting each other. And, magnesium chloride formation occurs by transferring electrons of the outer orbits.

Answer 2

Answer:

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Step-by-step explanation:

Probability of the 1st pen being good = # of favorable outcomes / # of total outcomes =129.

Probability of the 2nd pen being good = # of remaining favorable outcomes / # of total remaining outcomes =118

Total probability =129∗118=116