Question

a teacher purchase 42 maths book and 42 English books for his class . if the cost of Math Book is rupees 52 and cost of an English book is rupees 48 . find the total amount paid by the teacher to the shopkeeper ​

Answer 1

$\sf\large\underline{Given:}$

$\tt{\implies Number\:_{(math\:books)}=42}$

$\tt{\implies Number\:_{(Eng\:books)}=42}$

$\tt{\implies Cost\:_{(a\:math\:book)}=Rs.52}$

$\tt{\implies Cost\:_{(a\:Eng\:book)}=Rs.48}$

$\sf\large\underline{To\: Find:}$

$\rm{\implies Total\:_{(amount\: paid\:by\: teacher)}=?}$

$\sf\large\underline{Solution:}$

• At first calculate calculate the total amount of purchasing math and Eng book than sum of their amount ]

$\tt{\implies Amount\:_{(math\: books)}=No\:of\: books\times\:per\: book\: cost}$

$\tt{\implies Amount\:_{(math\: books)}=42\times\:52}$

$\tt{\implies Amount\:_{(math\: books)}=Rs.2184}$

$\tt{\implies Amount\:_{Eng\: books)}=No\:of\: books\times\:per\: book\: cost}$

$\tt{\implies Amount\:_{(Eng\: books)}=42\times\:48}$

$\tt{\implies Amount\:_{(Eng\: books)}=Rs.2016}$

• Now, calculate here total amount paid by teacher]

$\tt{\implies Amount\:_{(math\: books)}+Amount\:_{(Eng\: books)}}$

$\tt{\implies Total\:_{(amount)}=2184+2016}$

$\tt{\implies Total\:_{(amount)}=Rs.4200}$

$\sf\large{Hence,}$

$\rm{\implies Total\:_{(amount\: paid\:by\: teacher)}=Rs.4200}$

Answer 2

Solution:

No of math book =42 rate per book=52

the cost of all =42×52=>2184

No of eng books=42 rate per book=48

the cost of all=42×48=>2016

Total amount=2184+2016=>4200

therefore, total amount paid by teacher is ₹4200