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Let there be 4x boys and 3x girls Total score = 4x + 3x = 7xX Total score of boys = 4x(X + 2) Total score of girls = 7xX – (4xX + 8x) = (3xX – 8x) Average score of girls = ((3xX – 8x))/3x
Pipe ‘A’ can fill a tank in 15 hours whereas leak ‘A’ can empty it in 45 hours. If they both operate along with pipe ‘B’, then the given tan...
Pipe ‘A’ can fill a tank in 25 hours while pipe ‘B’ can empty it in 30 hours. They were operated on alternate hours starting with pipe ‘A’. ...
Pipe A can fill a tank in 45 minutes while pipe B can fill it in ____ minutes. There’s a leak in the tank which can empty it in _____minutes. When bot...
Tap A and Tap B fill a drum of volume 494 liters in 19 minutes. If their efficiencies are in the ratio x:y respectively and B alone takes to fill the ci...
The work done by a man, a woman and a child are in the ratio of 4 :3: 1. There are 15 men, 20 women and 30 children in a factory. Their weekly wages amo...
Pipe ‘A’ can fill a 180-litre tank in 18 hours. If pipe ‘A’ is 25% more efficient than pipe ‘C’ whereas pipe ‘B’ is 50% more efficient t...
Pipe ‘A’ can fill a tank in 15 hours while pipe ‘B’ can empty it in 45 hours. They were operated on alternate hours starting with pipe ‘A’. ...
Pipe Q and Pipe R together can fill a tank in 25 minutes. With Pipe S, all three pipes can fill the tank in 30 minutes. Pipe Q and Pipe T together can f...
Pipe ‘A’ can fill a tank in 50 hours whereas leak ‘A’ can empty it in 60 hours. If they both operate along with pipe ‘B’, then the given tan...
Pipe ‘A’ and pipe ‘B’, together can fill 20% of a tank in 6 hours while pipe ‘C’ takes 36 hours to empty it. ...
