Question
What is the average number of passengers travelling in
general class, sleeper class by both the trains? Study the following information carefully and answer the given questions. A train has four types of coaches – General, sleeper. First class and 3 AC. On a platform two trains – Train P and train Q are standing. Train P has 800 passengers, which is 60% more than the passengers in train Q. One – fourth of the total number of passengers of train Q are in general coach. 32% of the remaining passengers of train Q are in 3 AC coach. 28% of the passengers of train Q are in sleeper class. The total number of passengers in 3AC coaches of both the trains is 420. 40% of the total number of passengers of train P are in sleeper class. 10% of the total passengers of train P are in first class coach.Solution
Required average = (100+125+320+140)/4 = 171.25
If {x + (1/x)} = 4, then find the value of {x2 + (1/x2)}
x + y = 4, xy = 2, y + z = 5, yz = 3, z + x = 6 and xz =4, then find the value of x 3 + y 3 + z 3 – 3xyz.
...What will come in place of the question mark (?) in the following series?
23, 46, ?, 184, 368, 736
- If (x + y + z) = 14 and (xy + yz + zx) = 50, then find the value of (x² + y² + z²).
If (a – 8) 2 + (b + 2) 2 + (c – 3) 2 = 0, then find the value √(a +b + c).
...If (x - y) = 3, then find the value of (x³ - y³ - 9xy).
If x + y + xy = 118, such that x < y and both 'x' and 'y' are positive integers, then find minimum value of (x + y) .
If x + 1/x = 5 then find out the value of x⁵ + 1/(x⁵)?
If x = 8.15, y = 9.06 and z = –17.21, then the value of x³ + y³ + z³ – 3xyz is:
189500 – 22650 + 48× ? – 352×18 = 162674