Given, x + y + z = 20, x² + Y² + z² = 160 and x z = y² We know, (x + y + z) ² = (x² + Y²+ z²) + 2 (x y + y z + x z) or (30) ² = 460 +2 (x y + y z + x z) or (x y +y z + z x) = (900 - 460) =440/2 Or (x y + y z + z x) = 120 Or (x y + y z + y²) = 120 Or y (x + y + z) = 120 Or y x 30 = 120 or y = (120/30) = 4 Therefore, x z = 4² = 16
Despite of all the importance attached to water, there has been no effective mechanism adopted to prevent its pollution.
...I found it difficult to removed (a) / the chewing gum that (b) / stuck to my cap (c) / No Error(d)
In the following question, one part of the sentence may have an error. Find out which part of the sentence has an error and select the appropriate opti...
Essay writing is an art(A)/ that requires many planning(B)/ on the part of the writer.(C)
In the sentence given below, four words have been printed in bold. One of these words may be misspelt or inappropriate in the context of the sentence. ...
There was once library (A)/ in Mylapore that imposed rules (B) / on how a reader must position a book while reading. (C) / No error. (D)
Find out the appropriate word.
The priest class took upon itself the monopoly (1)/ of scriptural knowledge and interpretation (2)/ of the same to its own advantage. (3)/ No error (4)
The complete of education marking a turning point in the life of every individual.
Nursing attendants care for (1)/people whom are bed-ridden and (2)/those who have age-related problems, (3)/especially with mobility (4).
