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Let the pipe B be turned off after x minutes Then, Part filled by (A + B) in x minutes + Part filled by A in (25 - x) minutes = 1 x(2/55 - 1/35) + (25 - x) x 2/55 = 1 x/35 = 1 - 50/55 x = 35/11 or 3(2/11) minutes
A factory manufactures two types of widgets, A and B, in the ratio of 4:5. If the production of widget A rises by 20% while the production of widget B d...
In a class, the ratio of number of boys to that of girls was 7:6 and total number of boys was 1960. When some more boys joined, the ratio became 8:7. Fi...
The ratio of the number of cats and dogs in a pet store is 7:3, respectively. If 50% of cats are Siamese and 70% of dogs are Labradors, find the ratio o...
Akash distributed a certain amount of money among his three friends in the ratio of 2:3:4. If, instead, he had divided the amount...
The ratio between the length and breadth of a rectangular board is 7:5. If the breadth of the board is 20.5cm, find the length in cm.
Radius of base of a hollow cone is 8 cm and its height is 15 cm. A sphere of largest radius is put inside the cone. What is the ratio of radius of base ...
Two numbers are in the ratio 3: 2. If 6 and 5 are subtracted from the first and the second number respectively, the ratio becomes 8: 5. The numbers are:
