Directions(Q.31 to Q.35 ):

Read the given information carefully and answer the following questions.

There are four hostels i.e. A, B, C and D.

In hostel A: Number of boys are 120 and number of girls are 30% more than that of number of girls in hostel B.

In hostel B: Number of boys are double than that of number of girls.

In hostel C: Number of boys are 100 more than that of boys in hostel A and total boys and girls in C is 1000.

In hostel D: Number of boys is 182 more than the number of boys in hostel A. Average of number of girls of hostel A and that of hostel D is 223.Number of boys in hostel D is 98 less that of boys in hostel B.

Difference between number of boys and girls in hostel D is what percent of difference between boys and girls in hostel B?

Answer : Option B

Explanation :

Let number of girls in hostel B=100x Then number of boys in hostel B=200x Number of girls in hostel A= 130x Number of boys in hostel C=120+100=220 Number of girls in hostel C=1000-220=780 Total number of girls in hostel A and that of in hostel D=446 Number of girls in hostel D=(446-130x) Number of boys in hostel D=302 ATQ 200x – 302 = 98 ⇒ x = 2 /

Required percent= $frac{{left( {302 - 186} ight)}}{{left( {400 - 200} ight)}} imes 100 = 58{ m{\% }}$