Question

1. Which of the following are in proportion?
a) 21, 35, 24, 40 b) 5, 7, 40, 64
c) 90, 270, 17, 51 d) 75, 21, 18,6​

Answer 1

Product of Means = Product of Extremes

So, in an Equation of variables a,b,c,d

If axd=bxc, then a,b,c,d are proportional

a) 21x40=840

35x24= 840

Therefore, they are in proportion

b)5x64= 320

7x40=280

Therefore, they are not in proportion.

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Answer 2

Answer:

Step-by-step explanation:

a job that needs a high level of training and/or education

जीविका, पेशा, व्‍यवसाय (जिसके लिए उच्‍च प्रशिक्षण और/या शिक्षा अपेक्षित है)