Question
In a seminar, the average number of male and female
attendees is 540. 70% of males and 50% of females are professionals. If there are 588 non-professionals in total, what is the average of the number of male non-professionals and female professionals?Solution
ATQ,
Total attendees = 540 Γ 2 = 1080 Let males = M, females = F β M + F = 1080 Non-professionals: 30% of M + 50% of F = 588 β 0.3M + 0.5(1080 β M) = 588 β 0.3M + 540 β 0.5M = 588 β β0.2M = 48 β M = 240, F = 840 Male non-professionals = 0.3 Γ 240 = 72 Female professionals = 0.5 Γ 840 = 420 Average = (72 + 420) / 2 = 246
What is the position of A with respect to B in a round table seating arrangement facing towards the centre?
I. Seven persons A, B, C, D, E, F and...
Six persons P, Q, R, S, T and U have different heights. Who is the 4th shortest person?
Statement I: Two persons are taller than P. R is not th...
The question given below consists of two statements numbered I and II given below it. You have to decide whether the data provided in the statements ar...
Is ‘MORE’ the word formed from these four letters?
I. The word starts with M. There is only one letter between E and O.
II. Th...
N, O, Q, R, S and U are standing in straight line facing north. Who among the following is between R and U?
I. U stand second to the right of ...
Six persons F, G, H, I, J and K are sitting in a row facing north. Who among the following sits at the extreme left end?
Statement I. K sits t...
Among 6 friends, P, Q, R, S, T and U, who is third tallest?
I. R is taller than only S.
II. T is taller than P and U but is not the talles...
Is G grandfather of U?
I. E is mother of U and wife of B, who is only son of G.
II. U is only daughter of E, who is wife of B, who is...
Six persons (T, U, V, W, X, and Y) have different weights. Y is heavier than only two persons. Who is the heaviest person?
Statement I: T is h...
Seven persons A, B, Y, Z, E, F and G are sitting in a row facing north but not necessarily in the same order. Which of the following persons sit fourth...