Question

plz help me to solve this question plz​

Answer 1

Answer:

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Step-by-step explanation:

Answer 2

Step-by-step explanation:

Given:

Rajan bought a book for Rs 180 and sold it to sajan at a profit of 20%. Sajan sold that book to nirjan at a loss of 20%.

To find:At what price nirjan sold the book to receive a profit of 5%.

Solution:

1. C.P. of book for rajan= 180/-, for 20% profit he must sell that book to sajan at

$SP = CP \times \frac{120}{100} \\ \\ SP = 180 \times \frac{12}{10} \\ \\ SP = 216$

He must sell that book at Rs 216 to gain 20% profit.

2. C.P. of book for sajan=216/-

as he has loss of 20% when he sold that book to nirjan.Thus, SP of book must be

$SP = CP \times \frac{80}{100} \\ \\ SP = 216 \times \frac{8}{10} \\ \\ SP = 172.80$

S.P. must be 172.80/-

3. C.P. of book for nirajan is 172.80

he want 5% profit.

when he want to sold that book at 5% profit,S.P

for the book must be

$SP = CP \times \frac{105}{100} \\ \\ SP = 172.80 \times \frac{105}{100} \\ \\ SP = 181.44$

Thus,

SP of book should be 181.44 Rs, so that nirajan have a profit of 5% when he sold the book.

Hope it helps you.

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