Question
Average of 8 numbers is 25. If average of first four and
last two numbers is 15 and 40, respectively then find the fifth number given that ratio of fifth and sixth number is 7:5, respectively.Solution
Let fifth and sixth numbers be ‘7x’ and ‘5x’, respectively. So, 7x + 5x = 25 × 8 – 15 × 7 – 40 × 5 = 60 Or, 12x = 60 Or, x = 5 So, fifth number = 5 × 7 = 35
How many coins does Q’s have?
Seven persons G, H, I, J, K, L and M sit in a straight row facing north direction. I sits third to the left of G. H sits adjacent to G. J sits second to...
Five friends, N, O, P, Q and R, are sitting in a straight line. N and O are adjacent to each other. O is between N and P. N is third to the left of Q. Q...
In which of the following statement, the first and second persons are sitting opposite to each other in the final arrangement?
I) PW
...
Who is sitting third to the left of Iti?
How many persons are sitting between H and J when counted to the left of H?
Four of the following five are likes a group find the one that does not likes that group?
Statements:
B ≥ L = C; N ≤ L < O; Q ≥ N < R
Conclusions:
I. B > N
II. N = B
U, V, W, X, Y and Z are sitting around the circular table facing towards the center. V sits second to the left of U. X sits opposite to Z, who is not ad...
Five friends, F, B, W, Z and S, are sitting in a row facing north. F is sitting between Z and W. B is second to the left of W. Who is sitting at the rig...
Relevant for Exams:
