Question

Riya purchased 5 CDs from a store. If 3 of them cost ₹315.95 each and the other 2 cost ₹300.98 each,what is their total cost?​

Answer 1

$\red{ \huge{ \underline{ \overline{ \mid{ \bold{ \purple{ \: \: SOLUTION \: \: \red{ \mid}}}}}}}}$


$\underline{ \underline{\bold{ \: \: GIVEN \: \: : }}} \to$


$\bold{Total \: \: no. \: \: of \: \: CDs = 5}$


$\underline{ \bold{ \: In \: \: case \: \: of \: \: first \: \: 3 \: \: CDs \: \: }}$


$\bold{Cost \: \: of \: \: each \: \: CD = Rs. \: 315.95} \\ \\ \bold{ \therefore \: Cost \: \: of \: \: such \: \: 3 \: \: CDs = Rs. \: (315.95 \times 3)} \\ \\ \bold{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = Rs. \: 947.85}$



$\underline{ \bold{ \: \: In \: \:case \: \: of \: \: last \: \: 2 \: \: CDs \: \: }}$


$\bold{Cost \: \: of \: \: each \: \: CD = Rs. \: 300.98} \\ \\ \bold{ \therefore\: Cost \: \: of \: \:such \: \: 2 \: \: CDs = Rs. \: (300.98 \times 2) } \\ \\ \bold{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = Rs. \: 601.96}$


$\bold{ \therefore \: \: Cost \: \: of \: \: all \: \: the \: \: 5 \: \: CDs } \\ \\ \bold{= Rs.(947.85 + 601.96)} \\ \\ \bold{ = \underline{\pink{\: \: Rs. \: 1549.81 \: \:}} }$

Answer 2

$\underline{\underline{\huge{SOLUTION}}}$


No. of CDs that Riya purchased = 5

There are two types of CDs.


In first type , There are 3 CDs.

Cost of each CDs = Rs. 315.95

•°• Cost of such 3 CDs = Rs. ( 315.95 × 3 )

= Rs. 947.85



Again ,

In the second type of CD , there are 2 CDs


Cost of each CD = Rs. 300.98


•°• Cost of such 2 CDs = Rs. ( 300.98 × 2 )

= Rs. 601.96



Hence ,


Total cost of the 5 CDs = Rs. ( 947.85 + 601.96 )

= Rs. 1549.81



$\underline{\underline{\huge{ANSWER}}}$ ➡



$\underline{\boxed{\bold{\: \: Total \: \: cost = Rs. 1549.81 \: \: }}}$