Mix Test - 7...

The eighteen times a number is added to the square of that number, gives (–p) and the quadratic equation has only one repeated solution, then, what is the value of p?

The volume of a cube is 216 cm³, find its total surface area (in cm²).

If the mark price of an article is 800 and it is being sold at two consecutive discount of 20% and 10%. Then find the selling price of the article.

Ram scored \(80 \%\) marks. Total marks were \(300\). How much did Ram score?

What is the square root of $0.09$?

Find the number of odd factor of 540.

Rekha offers a discount of 10% on mark price an article and still makes a profit of 25%. If cost price of article is Rs. 360, what is mark price of the article?

If Rs. 9996 are distributed among P, Q, R and S in the ratio $\frac{1}{5}:\frac{1}{4}:\frac{1}{6}:\frac{1}{5}$, then amount R will get is-

Find the number of real solutions of the equation \(x^{2}-5|x|+4=0\).

What is the compound interest on a sum of Rs. 13,000 at 15% p.a. in 2 years, if the interest is compounded 8-monthly?