In what ratio must a shopkeeper mix two varieties of rice costing ₹75 and ₹80 per kg, respectively, so as to get a mixture worth ₹76.5 per kg?
A7 : 3
B3 : 5
C5 : 3
D3 : 7
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A bag contains ₹ 90 in coins. If coins of 50p, 25p and 10p are in the ratio 2 ∶ 3 ∶ 5, how many 25p coins are there in the bag?
In what ratio should cement costing Rs. 250 per bag be mixed with cement costing Rs. 325 per bag so that the cost of the mixture is Rs. 300 per bag. (A bag of cement is 50 kg).
P : Q = 5 : 6 ഉം R : Q = 25 : 9 ഉം ആണെങ്കിൽ P : R ൻ്റെ അനുപാതം എന്താണ്?
3 : 4 : 5 :: 6 : 8 : ---
വിട്ടുപോയ സംഖ്യ ഏത്?