Question
If total number of factors of 2,520 is 'y', then find
the value of (y - 4)(y + 6).Solution
Factors of 2,520 = 2³ × 3² × 5¹ × 7¹ So, total number of factors = (3 + 1)(2 + 1)(1 + 1)(1 + 1) = 4 × 3 × 2 × 2 = 48 y = 48 Required value = (y - 4)(y + 6) = (48 - 4)(48 + 6) = 44 × 54 = 2376.
In each group, one word is correctly spelt. Find the correct word.
The athlete’s remarkable performance in the championship helped him achieve his long-standing goal of being crown as the best in his discipline .
...When their eyes were set on a thing of beauty, they had to be possessed .
...1) Shalow
2) Swollow
3) Billionare
4) Perfecting
Select the correctly spelt word.
In each question below a sentence with four words printed in bold type is given. These are numbered as (1), (2), (3) and (4). One of these four boldly p...
As she sat in a New York City courtroom hearing the unanimos (A) verdict (B) of a jury that found her guilty (C) of crimes, the British socialite did no...
From the options given below, select the option which states the correct combination of incorrect sentences.
I. Recently, there has been a lot of...
Choose the correctly spelt wordÂ
The book is full of updated and contemparary commentary.Â
