Question
Pipes A and B can fill an empty tank in 20 hours and 24
hours, respectively, while pipe C can drain the full tank in "x" hours. If all three pipes (A, B, and C) are opened together and can fill the tank in 15 hours, determine the value of "x."Solution
Let the capacity of the tank = 120 liters (LCM of 20, 24 and 15) Amount of water filled by pipe A in one hour = 120 ÷ 20 = 6 liters Amount of water filled by pipe B in one hour = 120 ÷ 24 = 5 liters Amount of water filled by pipes A, B and C together in one hour = 120 ÷ 15 = 8 liters Amount of water taken by pipes C alone in one hour = 6 + 5 – 8 = 3 liters Time taken by pipe C alone to empty the tank = 120 ÷3 = 40 hours
How many person sit between one who likes grapes and one who lives in Kerala?
The number of persons sits between R and S is the same as between O and _____, when counted from the right of both S and O?
Who among the following attends the seminar immediately after M’s brother?
What is the position of A with respect to D?
How many persons are sitting between X and P when counted to the right of X?
Which of the following statement is true?
Eight persons, R, S, T, U, V, W, X and Y, sit around a square table and faces towards the centre of the table. Four of them sit at the corner of the tab...
What is the position of A with respect to F?
There are five persons D, E, F, G and H, who sit in a straight row. F sits second to the right of D. Neither E nor H sits to the left of F. G sits seco...
If all the vowels in the word ‘GEOGRAPHY’ are changed to the next letter in the English alphabetical order and all the consonants remain the same th...