mixtures and alligations
A mixture P is formed by removing a certain amount of coffee from a coffee jar and replacing the same amount with cocoa powder. The same amount is again removed from mixture P and replaced with same amount of cocoa powder to form a new mixture Q. If the ratio of coffee and cocoa in the mixture Q is 16 : 9, then the ratio of cocoa in mixture P to that in mixture Q is
logarithm
How many digits are there in the base 3 representation of 8!?
SOLUTION
Read the following information carefully to answer the given questions.The distance between 2 points P and Q is 1000 m. Ram is standing at P and Lakshman is standing at Q. Ram starts walking towards Q at 40m/s and Lakshman starts walking towards P at 60m/s. Once they reach the end point,they turn and start moving to their initial point. They keep on doing so till they Bang meet 3 times and move to the nearest point from P and Q.Q.20) How far from P do they meet for the 3rd time?a) 1000 mb) 500 mc) 800 md) They meet at P.e) None of theseQ.21) What is the total distance covered by Ram by the time they stop (in m)?a) 2000 mb) 500 mc) 800 md) 1000 me) None of these
unable to solve
N x N Square MatrixYou are given an nxn square matrix to be filled with numerals so that no two adjacent cells have the same numeral. Two cells are called adjacent if they touch each other horizontally, vertically or diagonally. So a cell in one of the four corners has three cells adjacent to it, and a cell in the first or last row or column which is not in the corner has five cells adjacent to it. Any other cell has eight cells adjacent to it.Question 1: What is the minimum number of different numerals needed to fill a 3x3 square matrix? [TITA]
unable to solve
N x N Square MatrixYou are given an nxn square matrix to be filled with numerals so that no two adjacent cells have the same numeral. Two cells are called adjacent if they touch each other horizontally, vertically or diagonally. So a cell in one of the four corners has three cells adjacent to it, and a cell in the first or last row or column which is not in the corner has five cells adjacent to it. Any other cell has eight cells adjacent to it.Question 1: What is the minimum number of different numerals needed to fill a 3x3 square matrix? [TITA]
difficult to solve the set
In a collegenine seminars are to be conducted. students are allowed to attend whichever seminar they want to. But timings of some seminars overlap with each other. It is known that1. The timing of seminar P overlaps with that of V, X and U.2. The timing seminar of Q overlaps with that of R, W, V and T3. The timing seminar R overlaps with that of Q, W, V and T4. The timing of seminar S overlaps with that of W and T5. The timing of seminar V overlaps with that of W.Q1. What is the minimum possible number of rooms required to conduct all the nine seminars?(A) 2(B) 3(C) 4(D) 5
please help in solving the set
In a collegenine seminars are to be conducted. students are allowed to attend whichever seminar they want to. But timings of some seminars overlap with each other. It is known that1. The timing of seminar P overlaps with that of V, X and U.2. The timing seminar of Q overlaps with that of R, W, V and T3. The timing seminar R overlaps with that of Q, W, V and T4. The timing of seminar S overlaps with that of W and T5. The timing of seminar V overlaps with that of W.Q1. What is the minimum possible number of rooms required to conduct all the nine seminars?(A) 2(B) 3(C) 4(D) 5
unable to solve
In triangle QPR, QS is an altitude of the side PR, which meets side PR in S such that P - S - R Suppose side PQ = 8 side QR = 12 and angle R = 30 degrees. Calculate lengths of QS, SR and PS respectively.
in this question why G is facing away from the center if it is not mentioned
Eight persons A through H, sit around a circular table but not necessarily in that order. Some are facing the centre and the remaining are facing away from the centre. The following information/ is known about their seating.(i) B sits third to the right of G(ii) There are two persons sit between G and A.(iii) C sits second to the left of A.(iv) C and G face the same direction.(v) D sits third to the left of the person who is adjacent to C.(vi) E sits third to the right of D, both of them face the same direction.(vii) F faces E.(viii) B and H face different directions.
I'm unable to solve the set
5 friends live adjacent to each other in a line along a certain street. Each of them is from a different profession, owns a different car, has a different type of tree in their yard, and has painted their mailbox in a different colour. A person standing on the opposite side of the street makes the following observations of the houses from the right to the left as seen by him.The Editor has a Red mailbox, and the person with a Brown mailbox, who has a Cherry tree, is on the immediate left of the person with the Black mailbox. The Salesman owns a Dodge. Brad lives immediately next to the person who owns a Cadillac. The Dentist has an Apple tree in his yard, while Paulo owns a BMW. Drake has an Orange mailbox. The house in the middle has a Mango tree in the yard, and Messi has a Blueberry tree in his yard. The Nurse resides in the first house on the street. Drake resides immediately next to the person who owns a Honda. Brad lives immediately next to the person who has a Lime tree in his yard. Proby is a Goldsmith, and the Nurse resides next to the house with the Purple mailbox