The concentration of alcohol in mixture A, B and C is 50%, 60% and 80% respectively. If 2 litres, 3 litres and 4 litres of mixture A,B,C are taken respectively and mixed, then what is the ratio of alcohol to the other constituent of the mixture. A. 1:2 B. 2:1 C. 2:3 D.3:2 ANSWER: B In a bag, there are 25 paise, 50 paise and Rs two coins, such that the total amount comes to Rs 18. If the ratio of number of coins of 50 paise to 25 paise is 1:4, then find the least number of Rs 2 coins. A. 2 B. 3 C. 4 D. 12 ANSWER: B
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both the questions answer is option b
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