In what ratio, water must be added to dilute honey costing ₹320 per liter so that the resulted syrup would be worth ₹280 per liter?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 1 : 7
Cost of honey $=320$ per litre
Cost of water $=0$ per litre
Cost of syrup $=280$ per litre
Using allegation method
$320\;\;\;\;\;\;\;\;\;280\;\;\;\;\;\;\;\;\;0$
Difference between extremes
$320-280=40$
$280-0=280$
Ratio of honey to water
$=280:40$
$=7:1$
Water must be added in the ratio $1:7$ to honey.