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A shopkeeper bought 120 quintals of whea...

A shopkeeper bought 120 quintals of wheat, 20% of it was sold at 25% loss. At what percent gain should he sell the rest to gain 25% on the whole transaction?
एक दुकानदार ने 120 क्विंटल गेहूँ ख़रीदा | इसकी 20% मात्रा 25% हानि पर बेची गयी | पूरे लेन-देन पर 25% का लाभ कमाने के लिए उसे शेष मात्रा को कितने प्रतिशत लाभ पर बेचना चाहिए ?

A

`36 1/2`

B

35

C

40

D

`37 1/2`

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