Question

plss answer plssssssssss​

Answer 1

Please mark it as the brainliest answer

Answer 2

Let the cost of 1 dozen bananas is c and can get d dozens of bananas for 840 Rs

hence,

(c+1)(d−2)=840

(c+1)(840c−2)=840

(c+1)(840−2c)=840

840c+840−2c2−2c=840c

c2+c−420=0

c2+21c−20c−420=0

(c+21)(c−20)=0

c=20,−21

Hence, the cost of one dozen is Rs 20