• # question_answer Page contains 60 lines. A chapter contains 125 pages. A book contains 5 chapters. 20 such books form a bound. If there are 30 lakh lines in x bounds, then the value of x is A) 4                      B)          2 C) 5                      D)          6

$20\times 5\times 125\times 60$ lines form a bound. $\therefore$ 30 lakh lines form $\frac{1\times 30,\,00,\,000}{20\times 5\times 125\,\times 60}$ bounds = 4 bounds.