In what ratio water must be added to dilute honey costing Rs.240 per litre so that resulting syrup would be Rs.180 per litre

$1:3$

The correct answer is Option (1) → $1:3$ **

Cost of honey per litre = Rs.240

Cost of water = Rs.0

Required cost of mixture = Rs.180

Use alligation:

Honey : Water = (240 − 180) : (180 − 0) = 60 : 180 = 1 : 3