What ratio must a shopkeepermix Peas and Soybean of Rs.16 and Rs. 25/kg, As to obtain a mixture of Rs.20 ?  Choose the correct choice:
A) 10 : 7
B) 9 : 8
C) 5 : 4
D) 13 : 11
E) 14 : 8

Rationale: correct option : ( c ) use rule of alligation , to determine the ratio the required ratio of soybean and peas = 5 : 4
Answer: C