Question

By selling a speaker for Rs768,man loses 20%.In order to gain 20%how much should he sell the speaker?​

Answer 1

Answer:

Man should sell for Rs. 1152 to gain 20 %

Step-by-step explanation:

Finding cost price

Selling price (SP) = Rs. 768

Loss % (L) = 20 %

Cost price (CP) = (SP * 100)/(100 - L)

= (768 * 100)/(100 - 20)

= 76800/80

= 960

CP = Rs. 960

Finding SP when man gains 20 %

CP = Rs. 960

Gain % (G) = 20 %

Selling price (SP) = CP * (100 + G)/100

= 960 * (100 + 20)/100

= 96 * 120/10

= 96 * 12

= 1152

SP = Rs. 1152

∴ the man should sell for Rs. 1152 to gain 20 %.

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Answer 2

Answer:

Answer:

The Selling price required to make 20% is Rs. 1152.

Step-by-step explanation:

Given :

Selling Price = Rs. 768

Loss Made = 20%

To Find :

Selling price in order to have 20%

Solution :

Case I -

Selling Price = Rs. 768

Loss % = 20%

Cost Price = ??

\bigstar \: {\boxed{\sf\:{CP = \frac{100}{(100 - loss\%)} \times SP}}}

\sf{\longrightarrow} \: {CP = \dfrac{100}{(100 - 20\%)} \times 768} \\ \\ \sf{\longrightarrow} \: {CP = \dfrac{100}{80} \times 768} \\ \\ \sf{\longrightarrow} \: {CP = \dfrac{76800}{80}} \\ \\ \sf{\longrightarrow} \: {CP = 960}

Cost Price of the speaker = Rs. 960

\rule{300}{1.5}

Case II -

Cost Price = Rs. 960

Profit needed = 20%

Selling Price = ??

Selling Price = Rs. 1152

therefore The Selling price required to make 20% is Rs. 1152.

Step-by-step explanation:

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