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MANISHA GURAGAIN

· started a discussion

· 1 Months ago

explanation (Question:229015.2)

please explain the last line.

Question:

DIRECTIONS: Study the following table carefully and answer the questions that follow.

Total Population in Five Cities = 15,00,000

Cities

Total Population

(In Lakhs)

Rural : Urban

Male : Female

Literate : Illiterate

% of Graduate out

of Literates

P

-

7:3

10:11

2:3

-

Q

4.15

-

7:3

-

45

R

-

8:5

-

7:4

-

S

5.25

-

11:4

-

65

T

-

11:9

-

2:3

-

One - fourth of total population of City R is 2,20,000.  If the total number of Literate graduates of City Q and S are 22,500 and 52,000. What % of the total population of City Q, R and S together is literate?

Options:
A)

28.6%

B)

37.9%

C)

50.6%

D)

25.6%

E)

45.6%

Solution:

Ans: (b) 

According to question,

\(\cfrac{1}{4}\times\) R = 2,20,000 

 R = 8,80,000

Literate population of City R = \(\cfrac{7}{11}\times\) 8,80,000 = 5,60,000

Total number of Literate graduates of City Q = 22500 = 45%

Hence x= Literate population of City Q

45% of x = 22500 

x = 50000

Total number of Literate graduates of City S = 52000 = 65%

 Hence y = Literate population of City S

65% of y = 52000

or y=80000

Required % = \(\cfrac{690000}{1820000}\times\) 100 = 37.9%

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