Question
Solution A contains 10% acid and solution B contains
30% acid. In what ratio should solution A be mixed with Solution B to obtain a mixture with 25% acid?Solution
In solution 1 acid percent=10 In solution 2 acid percent=30 Â In the resulting mixture acid percent=25% By applying the principle of allegations we have =(30-25)/(25-10) =5/15 =1:3
- A square has its side length equal to the radius of a circle. If the circle's area is 962.5 m², find the perimeter of the square.
The circumference of a circle is 22 cm and the length of the rectangle is 3 times the radius of the circle. Find the area (in cm2) of the rec...
The diameter-to-height ratio of a right circular cone is 16:15. Given that the curved surface area is 1224 π cm2, determine the cone's slant...
In a rectangular floor of length and breadth of 22 metres and 16 metres, respectively, square tiles each of 2 metre edge length are to be laid. If the c...
The lengths of a pair of parallel sides of a trapezium are respectively 22 cm and 18 cm, and the perpendicular distance between these two sides is 15 cm...
The circumference of a circle is equal to the perimeter of a rectangle whose length and breadth are in ratio 5:3, respectively. If the area of the recta...
A rectangle has a length to breadth ratio of 7:5. The length is increased by 15% without any change to the breadth, resulting in an 84 m² increase in t...
The radii of two solid right circular cylinders are 11 cm and 9 cm respectively and their heights are (h+1) cm and (2h+1) cm respectively. If the areas ...
Determine the base length of an isosceles triangle with an area of 288 cm² and an altitude measuring 36 cm.