Ques. How many litres of a 90% solution of concentrated acid needs to be mixed with a 75% solution of concentrated acid to get a 30 L solution of 78% concentrated acid?
Op 1: 24 L
Op 2: 22.5 L
Op 3: 6 L
Op 4: 17.5 L
Op 5:
Correct Op : 3
Ques. If x is a positive number and y = x2, then which of the following is true?
Op 1: y is always more than x
Op 2: x is always more than y
Op 3: x is always equal to y
Op 4: None of these
Op 5:
Correct Op : 4
Ques. Rajiv has a number x in his mind. He finds out that the square of x is less than x. What is the range of x?
Op 1: x is more than 0
Op 2: x is less than 1
Op 3: x is more than 0, but less than 1
Op 4: This is not possible
Op 5:
Correct Op : 3
Op 1: 24 L
Op 2: 22.5 L
Op 3: 6 L
Op 4: 17.5 L
Op 5:
Correct Op : 3
Ques. If x is a positive number and y = x2, then which of the following is true?
Op 1: y is always more than x
Op 2: x is always more than y
Op 3: x is always equal to y
Op 4: None of these
Op 5:
Correct Op : 4
Ques. Rajiv has a number x in his mind. He finds out that the square of x is less than x. What is the range of x?
Op 1: x is more than 0
Op 2: x is less than 1
Op 3: x is more than 0, but less than 1
Op 4: This is not possible
Op 5:
Correct Op : 3
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