If the numerator of a fraction is increased by 250% and the denominator is increased by 400%. The resultant fraction is7/19 . What is the original fraction?

Let p, q and r be the fraction such that p<q<r. If r is divided by p, the result is 5/2, which exceeds q by 7/4. If $$p+q+r=1{11\over12} $$ then what is the value of (r-p)?

The value of $$ {\sqrt{x^{2}y}\over{\sqrt{xy^{2}}}}×\sqrt{y\over{x}}$$ is

The greatest fraction out of $$ {2\over 5},{5\over 6},{11\over 12},and \ {7\over8}$$ is

Arrange 2/3; 4/5; 1/2; 3/4 in descending order :

Which of the following is equal to 1.41 × 10⁶ ?

Solve it 0.002 × 0.5=?

Which of the following fractions is greater than $$ {3\over 4}$$  and less than $$ {5\over 6}$$?