Question

In what proportion must rice at rs. 3.10 per kg be mixed with rice at rs. 3.60 per kg so that the mixture be worth rs. 3.25 per kg?

Answer 1

☆ranshsangwan

C.P of a unit quantity of 1st kind  = 310p (in paise)
C.P of a unit quantity of 2nd kind  = 360p
Mean price = 325p

C.P of unit quantity         C.P of unit quantity

of 1st kind                         of 2nd kind

    (310p)                         (360p)

 

                     \                       /
                        Mean Price

                         (325p)

                    /                        \

 

 (360 – 325)          :           (325 – 310)

       35                                       15


Required ratio = 35 : 15 = 7 : 3
They must be mixed in the ratio 7 : 3