DP HC (MIN) RATIO QUIZ-2

There are total 200 students in a school, of which $\frac{1}{5}$ th are boys. Find the number of girls in the school.

The cash difference between the selling price of an article at a profit of 8% and 12% is Rs. 3. The ratio of two selling price is :

Sum of Rs. 10,627 is distributed among Raushan, Rituraj and Romi such that if Rs. 24 , Rs. 29 and Rs. 46 be taken from their shares respectively, their remaining shares are in the ratio $8: 11: 9$. What would have been the ratio of their shares if Rs. 168, Rs. 35 and Rs. 170 were added to their shares respectively to their original shares?

What is the fourth proportion to 391,299 , 204?

Find the third proportion of $\left(a^{2}-b^{2}\right)$ and $(a-b)$.

In a container Milk and Water are in the ratio of 7 : 3 .  8 litres of water is added to the mixture so , that in the final mixture the ratio of milk and water become 1 : 1 . Find quantity of water in the final mixture.

The sum of the three numbers is 460. If the ratio between the first and second number be $4: 7$ and that between the second and third be 6: 7, then find the second number.

Perimeter of a rectangle is 2 cm more than circumference of a circle and area of circle is 616 cm². If breadth of rectangle is equal to radius of circle, then find length of rectangle (in cm)?

The sides of a triangle are in the ratio $\frac{1}{4}: \frac{1}{3}: \frac{1}{5}$. If the perimeter of the triangle is 188 cm, then the length (in $\mathrm{cm}$ ) of the largest side is: