Question

e) The cost of 3 copies is Rs 91.50. (i) Find the cost of 1 copy (ii) Find the cost of 5 copies.​

Answer 1

Answer:

→ i) Rs. 30.5

→ ii) Rs. 152.5

Step-by-step explanation:

Given that,

• Cost of 3 copies = Rs. 91.50

We have to find,

1. Cost of 1 copy.
2. Cost of 5 copies.

Solution:

Cost of 3 copies can be found by dividing the cost of 3 copies by 3 i.e. :

$\dashrightarrow \: \sf{ \dfrac{91.50}{3}}$

$\dashrightarrow \: \underline{ \boxed{ \sf{ \bold{Rs. \: 30.5}}}} \: \: \: \bigstar$

• Therefore, cost of 1 copy is "Rs. 30.5".

NOW,

For finding cost of 5 copies, we have to multiply the cost of 1 copy with 5 :

$\dashrightarrow \: \: \: \sf{5 \times 30.5}$

$\dashrightarrow \: \underline{ \boxed{ \sf{ \bold{Rs. \: 152.5}}}} \: \: \: \bigstar$

• Therefore, cost of 5 copies is "Rs. 152.5".