Question

If the cost of bananas is increased by rupees 2 per dozen, one can get one dozen less bananas for rupees 840. Find the original cost of one dozen bananas.

Answer 1

cost of one dozen be x,

new cost is x+2,,

let the total banana be y,

and fr 840 let it be y-1

x+2×y-1=840

xy-x+2y-2=840

xy-x+2y=838 [x×y is the cost fr

the bananas]

solving this equation u will get the answer. If u find trouble just get me know it,