In what ratio water should be mixed with a liquid at Rs 12 per litre so that by selling the mixture at Rs 13.75 per litre, the seller gains 25%?
A
1 : 11
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
1:15
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
1 : 17
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
1 : 13
No worries! We‘ve got your back. Try BYJU‘S free classes today!
E
None of these
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A 1 : 11 Gain =25%, S.P.=Rs 13.75 per litre ∴ C.P. of mixture =100×13.75100+25=Rs 11 per litre C.P.of water may be assumed as Rs 0 per litre C.P.of liquid =Rs 12 per litre By the rule of alligation, we have ∴ Water:Liquid =1:11