A reduction

A 40% reduction in the price of mango would enable a buyer to get 2 kg more for Rs 90. Find the initial/original price of mango per kg.

Correct answer:

p =  30 Rs/kg

Step-by-step explanation:

r=100%40%=110040=0.6  p m=90 r p (m+2 kg) = 90  p m=90 r p m+2 r p = 90  r 90+2 r p=90 0.6 90+2 0.6 p=90  1.2p=36  p=1.236=30=30 Rs/kg  p=30   Verifying Solution:  m=90/p=90/30=3 kg  p2=r p=0.6 30=18 Rs/kg  m2=90/p2=90/18=5 kg

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