Taking LCM of 24, 30 and 20 = 120 Efficiency of A = 5 Efficiency of B = 4 Efficiency of (A+B-C) = 6 Efficiency of C = (5 + 4) – 6 = -3 Pipe C empty the tank in = 120/3 = 40 min Capacity of the tank = 40 × (9/3) = 120 gallons
The salary of A is 50% more than the salary of B. If A got a 50% rise in his salary and B got a 25% rise in his salary. then the percentage increase in ...
A girl spent 15% of her monthly income on clothing. Of the remaining, she spent on travel and food in the ratio of 5:4. If the difference of the income ...
