Question

by selling 45 oranges for rs. 160, a woman loses 20%. how many oranges should ahe sell for rs. 112 to gain 20% on the whole?​

Answer 1

Answer:

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Answer 2

Answer:

Let CP be ₹ x

case of loss,

SP of 1 orange = ₹ 160 ÷ 45

Loss = 20%

⇒SP = CP - Loss

 = x - 20% of x

= x - 0.2x = 0.8x

⇒160÷45 = 0.8x 

⇒x = ₹40/9

case of gain,

Let the number of orange be y

SP of 1 orange = ₹112÷y

SP = CP + gain

= x + 20% of x = x +0.2x

= 1.2x = 1.2×(40/9)

⇒112/y = 1.2×(40/9)

⇒y = 21

so, 21 oranges should she sell for rupees 112 to gain 20% on the whole.

Step-by-step explanation:

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