Discussion Forum



1)

In what ratio must rice at Rs.9.30 per kg be mixed with rice at Rs.10.80 per kg.So that the mixture worth Rs.10per kg?


A) 7 : 8

B) 8 : 7

C) 6 : 5

D) 5 : 6

Answer:

Option B

Explanation:

By the rule of alligation 

C.P of 1 kg of 1st kind(in paise)=930 ie +70 to mean price 1000(in paise)

C.P of 1 kg of 2nd kind(in paise)=1080 ie -80 to mean price 1000(in paise)

Required ratio = 80 : 70 =8 : 7