Question

a cost of Mathematic book is rupees 25 3 / 4 and that of the science book is rupees 20 1/2 which cost more and by how much​

Answer 1

Answer:

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Step-by-step explanation:

Coast of mathematic book

=

$= 25 \frac{3}{4}$

$\: means \: \frac{103}{4}$

$= rupees \: 25.75$

_______________________

Coast of science book. →

$= 20\frac{1}{2}$

$means \: = \frac{41}{2}$

$= rupees \: 2.5$

Means the coast of mathematicsbook is more than science book because the cost of science book is ₹ 2.5 and coast of mathematic book is ₹25.75.

Answer 2

Question :

a cost of Mathematic book is rupees 25¾ and that of the science book is rupees 20½ which cost more and by how much

To find :

Which book costs better and by how much ?

Solution :

$\sf Cost \: of \: mathematics \: book \rarr₹ \: 25 \frac{3}{4}$

$\sf \small Cost \: of \: science \: book \rarr₹ \: 20 \frac{1}{2}$

$\sf \small \therefore Difference \: in \: two \: prices \rarr₹25 \frac{3}{4} - ₹20 \frac{1}{2}$

$\sf \small \rarr ₹ \: \frac{103}{4} - ₹ \: \frac{41}{2}$

$\sf \small \rarr ₹ \: \frac{103}{4} - ₹ \: \frac{41}{2}$

$\sf \small \rarr ₹ \: \frac{103}{4} - ₹ \: \frac{82}{4}$

$\sf \small ( \frac{₹103 - ₹82}{4} )$

$\sf \small \rarr ₹\frac{21}{4}$

$\sf \small So \: the Mathematics \: Book \: costs \: greater \: by \: \underline{ \boxed{\purple{\: ₹ \: 5 \frac{1}{4} }}}$