Question

solve this question..............

Answer 1

☆Hello friend☆

As CP of 100 articles = Rs 4000

Gain% = 20

Gain = 20/100 × Rs 4000
= Rs 800

SP = Rs ( 4000 + 800)
= Rs 4800

CP of 1 articles = Rs 4000/ 100
= Rs 40

CP of 20 articles = Rs 40 ×20
= Rs 800

Gain% = 5
Gain = 5/100 × 800
= Rs 40

SP = Rs ( 800 + 40 )
= Rs 840

Remaining SP = Rs ( 4800 - 840 )
= Rs 3960

CP of 80 articles = 4000/ 100 × 80 = Rs 3200

Gain = Rs ( 3960 -3200)
= Rs 760

G%= ( 760/ 3200 × 100)%
= 23.75%

$hope \: it \: helps$

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