The following table shows the number of sweets manufactured by six factories.
|
Year |
Factory |
|||||
|
P |
Q |
R |
S |
T |
U |
|
|
1996 |
196 |
145 |
254 |
169 |
291 |
220 |
|
1997 |
172 |
233 |
141 |
125 |
167 |
189 |
|
1998 |
178 |
240 |
150 |
130 |
177 |
192 |
|
1999 |
180 |
260 |
160 |
140 |
188 |
195 |
What is the respective ratio of sweets manufactured by factories P, Q and R together in the year 1998, to the sweets manufactured by factories S.T and U together in the same year?
1
568 ∶ 499
2
61 ∶ 72
3
61 ∶ 42
4
40 ∶ 51