MBA Exam

Ram prepares
solutions of alcohol
in water according to customers’
needs. This morning Ram has
prepared 27 litres
of a 12%
alcohol solution
and kept it ready in a 27 litre delivery container to
be shipped to the customer.
Just before
delivery, he finds out hat the customer had asked for 27 litres of 21% alcohol solution. To prepare what
the customer wants,
Ram replaces a portion
of 12% solution
by 39% solution. How many litres of 12% solution are replaced? pl explain

1) 9
2) 5
3) 10
4) 12

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MBA Other Question
Let x be a three digit integer which sum of digits is 11; The sum of the digit of the number 2x cant be

1) 4
2) 13
3) 15
4) 22
 Chewing Gum boy is the naughtiest and most intelligent student in his class. When asked questions, he always gives the wrong answer to the first question and the right answer to the second question. His teacher caught him eating chewing gum in Math class and asked him the following questions:Teacher: “How many single digit whole numbers are there?”Chewing Gum boy: “Sir, 0, 1, 2 and 4.”Teacher: “How many four digit numbers can you form by using these digits if you cannot use each digit more than once and what will be the sum of all those numbers?”What did Chewing Gum boy reply?

1) 19, 38664
2) 14, 4230845
3) 18, 45108
4) 64, 36864