191. Let
the total number of staff members be X.
Then, the number who can type or take
shorthand = ( X – 3X / 4 ) = X/3.
Votes won by the candidate = 5/6of 3X/ 4 = 5X/
8
Let
A and B represent the sets of persons who can type and take shorthand respectively.
Then,
n (A ᴗ
B ) = X/4, n (A) = X/5 and n (B0 =X/3.
Required fraction = (x/8) /X/3) = (X/8 x 3/X) = 3/8.
192. Hire
charges =Rs.(60 x4 + 60 x 5 + 8/5 x 200) = Rs. 860 .
Suppose Rohit had Rs .X with him initially. Then, X – 860 = ¼ x 860 X = 1075
193. Let the
total number of shots be X. then,
Shots fired by A = 5/8 X; shots fired by B = 3/8 x.
Killing shots by A = 1/3 of 5/8 X = 5X / 24; shots missed by B = 1/2 of
3/8X = 3/16 X.
3x/16 = 27 or X = (27 x 16 / 3) = 144.Birds killed by A = 5X / 24 =(5 /
24 x 144 ) = 30.
194. Number
of alterations required in 1 shirt = (2/3 + 3/4 + 4/5) = 133/60.
Number
of alterations required in 60 shirts = (133 / 60 x 60 ) = 133.
