Question
Ratio of males to females in city A is 2:3 and ratio of
males to females in city B is 14:25. Number of males in city B are (x+10)% more than number of males in city A. Number of females in city B are 66(2/3)% more than number of females in city A and difference between them is 300. Find (x + 20)% of total population of city A?Solution
Let, number of females in city A = 3a So, number of females in city B = (1+2/3) of 3a = 5/3× 3a = 5a 5a – 3a = 300(given) 2a = 300 a = 150 So, number of females in city A = 3a = 450 Number of females in city B = 750 So, according to the question, Number of males in city A = 300 Number of males in city B = 420 Number of males in city B are (x + 10)% more than number of males in city A =  
(x + 10)% = 40% x = 30% Total population of city A = 450 + 300 = 750 (x + 20)% = 50% So, (x + 20)% of total population of city A = 50% of Total population of city A = 
Hence, option B is the correct answer.
In the questions given below, there are three statements followed by three conclusions I, II and III. You have to take the three given statements to be...
Statements: No bold is a smart.
Some smarts are cowards.
Conclusions: I. Some bolds are not cowards.
II. Some smarts are not bold...
In the given question, three statements are given each followed by two conclusions I and II. You have to consider the statements to be true, even if th...
Statements: All diaries are papers.
Some papers are pens.
No pencil is a paper.
Conclusions:I. No diary is a pencil.
...
In each question below are given three statements followed by three conclusions numbered I, II and III. You have to take the two given statements to be...
Statement:
Some Sundays are Monday.
Only a few Monday are Tuesday.
All Wednesday are Tuesday.
None of the Mondays ...
Statements:Â
Only a few Apples are Kiwis.
All Kiwis are Pears.
No Pear is a Banana.
Conclusions:
I. Some Apples are ...
Statements: Some pins are mirrors. Â
All mirrors are boxes.
Conclusions:I. Some boxes are pins.Â
 II. Some boxes are mirrors.
Statements:
Some authors are teachers.
All teachers are poets.
Some poets are artists.
Conclusions:
I. Some auth...
Statement:
Some lehenga are saree.Â
Only a few suit are dhoti.Â
Only a few dhoti are hanky.   Â
All lehenga are hanky....
Relevant for Exams:
