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  • 2 answers

Vishawjeet Virk 6 years ago

Yes

Yogita Ingle 6 years, 1 month ago

Weighted Mean is an average computed by giving different weights to some of the individual values. If all the weights are equal, then the weighted mean is the same as the arithmetic mean.

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Yogita Ingle 6 years, 1 month ago

For the first AP, a =3, d = 4
Hence, any nth term would be given by 3+(n-1)4 = 4n-1
Also, since 407 is the last term, so, 407 = 4n-1 i.e. maximum value of n can be 102
For the second AP, a = 2, d = 7
Hence any mth term would be given by 2+(m-1)7 = 7m - 5
Also, since 709 is the last terms, so, 709 = 7m-5 i.e. maximum value of m can be 102
To find the terms common to both the APs, we can equate the nth term of first AP to the mth term of the second AP
4n -1 = 7m-5
4n = 7m-4
Now, since n is a whole number, so 7m-4 needs to be divisible by 4.
So, then, m can be equal to all multiples of 4 till 102 i.e. 4, 8, 12, 16, 20, 24, ......100
So, the number of terms common to the 2 APs would be 25. >

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Ankit Dahiya 6 years, 1 month ago

Notes are like summary of whole chapter
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Para Ranglong 6 years, 1 month ago

What is philosophy
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Paras Kumar 6 years, 1 month ago

The average velocity of an object is its total displacement divided by the total time taken
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Rohit Kumer 6 years ago

3 barge tha

Sachin Kumar 6 years, 1 month ago

3
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Gourav Rajoriya 6 years ago

बड़े-बड़े चर्चा का निर्माण किया जाता था जिन्हें कैथेड्रल कहते थे और उनके आसपास रहने वाले नगरों को कैथेड्रल नगर कहते थे
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The title of the chapter ‘The Birth’ is perfect. The theme of the story is about a young doctor, Andrew dealing with a critical birth case. The baby is born lifeless. He takes certain decisions that prove quite successful. Not only he succeeds in saving the mother who is in critical condition after the delivery, but also succeeds in reviving the child. So the baby born lifeless is born again owing to the efforts of the dedicated doctor. Hence the title is perfectly appropriate and justified.
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Choudhary ? 6 years, 1 month ago

By writing
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Mr Sarfaraz 6 years, 1 month ago

What
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