Question

The pictograph shows different subject books which are kept in a library. Observe the graph and answer the following question:
How many more Science books than the History books are there in the library?

• A. $400$
• B. $200$
• C. $300$
• D. $500$

Answer 1

The correct option is B $200$

$\Rightarrow$ In pictograph, one book symbol equal to $100$ books.

$\therefore$ From given pictograph, we have made following frequency distribution table :

$Subject$	$No.ofbooks$
$Hindi$	$6\times 100=600$
$English$	$8\times 100=800$
$History$	$2\times 100=200$
$Science$	$4\times 100=400$
$Maths$	$3\times 100=300$
$Total$	$2300$

$\Rightarrow$ Number of science books in library $=400$

$\Rightarrow$ Number of History books in library $=200$

$\Rightarrow$ Difference between science and history books $=400-200=200$

$\therefore$ In library, there are $200$ science books more than history books.