Question
Four numbers P, Q, R, S satisfy: Q is 25% less than P,
Q:R = 9:10, and R:S = 5:8. If the average of P, Q, R, S is 94, find (S – P).Solution
ATQ,
Q is 25% less than P ⇒ P:Q = 4:3 Match Q across ratios: P:Q = 12:9 and Q:R = 9:10 ⇒ P:Q:R = 12:9:10 R:S = 5:8 ⇒ make R = 10 ⇒ R:S = 10:16 So P:Q:R:S = 12:9:10:16 Desired difference = (16 – 12)/(12 + 9 + 10 + 16) × 94 × 4 = 4/47 × 376 = 32
How is S related to V?
I. S’s father T is brother of U. U is V’s wife.
II. S is son of T. T is sister of V. U is V’s w...
How many students are there in class 10 in the school X?
I. The class teacher of class 10 correctly remembers that the number of students in he...
The question given below consists of two statements numbered I and II below them. You have to decide whether the data provided in the statements are su...
What is the code for ‘ mankind ’ in the code language?
Statements :
I. In the code language ‘forever mankind daily’ is written a...
How is E related to D?
I. D is the son of A’s wife who is the daughter of E’s wife.
II. E’s wife is mother-in-law of D&r...
Who is brother in law of Y?
I. Y is mother of Z and is married to the brother of A, who is female.
II. V and X are brothers of A. U is wife of X.
Among buildings P, Q, R, S, T and U (each building is of different height), which of the tallest?
I. S is taller than P and U but shorter than Q...
Six persons namely – Rahul, Ganesh, Pooja, Dinesh, Reshma and Hemant are sitting in a circular table facing center but not necessarily in same order....
Five friends Harsha, Geeta, Naman, Suraj and Anuj are seated around a circular table facing the centre. Who sits to the immediate right of Suraj?
How is ‘dog’ coded in a code language?
I. ‘loyal and intelligent dog’ is coded as ‘la po hi do’
II. ‘dog is running fast’ ...
