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Rose essential oil, especially from Rosa damascena, is known as ‘attar of rose’. It is extensively used in the perfume industry due to its rich and lasting fragrance.
If the 5-digit number 535ab is divisible by 3, 7 and 11, then what is the value of (a²-b² + ab)?
If 94*6714 is divisible by 11, where * is a digit, then * is equal to
Set A contains five consecutive multiples of 4 and Set B contains 4 consecutive odd numbers. The sum of highest values of Set A and B is 53. Smallest va...
Find the third proportion of 30 and 15.
If the numerator of a fraction is increased by 200% and the denominator is increased by 400%, the resultant fraction is 9/25 . What was the original fra...