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 be worth Rs 10 per Kg?
Solution:
C.P
of 1 Kg rice of 1st kind 930 p
C.P
of 1 Kg rice of 2n d kind 1080p
Mean Price 1000p
80
70
Required
ratio=80:70 = 8:7
