Question
A merchant has two types of sugar. Type A costs 50 per
kg, and Type B costs 70 per kg. In what ratio should the two types be mixed to get a mixture that costs 60 per kg?Solution
ATQ, Let the ratio in which Type A and Type B should be mixed be x:y. Using the rule of allegation: The cost difference between Type B and the mixture is 70 - 60 = 10. The cost difference between the mixture and Type A is 60 - 50 = 10. Therefore, the ratio x:y is 10:10, which simplifies to 1:1. So, the two types should be mixed in the ratio 1:1.
The downstream speed of a boat is 4 km/hr more than its upstream speed and the ratio of the speed of the boat in still water to the speed of the stream ...
Two trains of lengths 100 m and 90 m are running with speeds of 60 km/hr and 57 km/hr respectively towards each other on parallel lines. If they are 70 ...
In which of the following group, Header and Footer can be found on the insert button while using PowerPoint?
The main folder on a storage device is known as
A and B are the roots of equation x2 - 13x + k = 0. If A - B = 5, what is the value of k?
Which of the following is the justification that aligns text on both margins of a document in Word?
A train of length 260 m crosses another train of length 120 m running is opposite direction in 5 sec. If speed of longer train is 90 km/h, then in what ...
Two places X and Y are 450 km apart. A truck leaves place X from place Y and at the same time another truck leaves place Y to X. Both the men meet 9 hou...
If the sum of the squares of the roots of p2 - (x-2)p - (x+1) = 0 is 5 then what is the value of x.
Train A running at a speed of 46 km/hr. crosses train B in 30 seconds. Find the speed of train B (in km/hr), if the sum of the length of train A and B i...
Relevant for Exams:
