Question
Mixture ‘A’ contains 80% acetone and rest 32 litres
water. Mixture ‘B’ contains 70 litres acetone and rest 50% water. When two mixtures are mixed, then find the ratio of acetone to water in the resultant mixture.Solution
Quantity of water in mixture ‘A’ = 32 litres Total quantity of mixture ‘A’ = 32/0.20 = 160 litres Therefore, quantity of acetone in mixture ‘A’ = 160 – 32 = 128 litres Quantity of acetone in mixture ‘B’ = 70 litres Total quantity of mixture ‘B’ = 70/0.50 = 140 litres Quantity of water in mixture ‘B’ = 140 – 70 = 70 litres Therefore, quantity of acetone in resultant mixture = 128 + 70 = 198 litres Quantity of water in resultant mixture = 70 + 32 = 102 litres Required ratio = 198 : 102 = 33:17
- Two circles have radii of 18 cm and 32 cm, and they touch each other externally. What is the length of a common tangent between them?
O and C are the respectively orthocentre and circumcentre of ∆PQR. The line PO is extended which intersect line QR at S. such that, ∠QCR = 140°, �...
Find the area of triangle having sides 28 m, 45 m, and 53 m.
If O is circumcentre of acute angled triangle ABC, if ∠ BAC = 35˚ then ∠ BOC = ?
-Constable/1724906147-62.JPG)
The total of the perimeter of a rectangle and the circumference of a circle is 156 cm. The rectangle's length equals the side of a square, and the squar...
If I is the incentre of ΔABC , if ∠ BAC = 300 , then what is the measure of ∠ BIC?
A triangular field has sides 13 m, 14 m, and 15 m. A well with a diameter of 7 m is dug outside the field. If the entire soil dug from the well is used ...
If I is the incentre of ΔABC , if ∠ BAC = 650 , then what is the measure of ∠ BIC?
