Comprehension Passage
The following table shows the total number of students who are learning both Chess and Squash in four different colleges, namely, A, B, C and D along with the difference between the number of students learning Chess and Squash and also the percentage of students learning Carrom. Based on the data in the table, answer the questions that follow:
College-wise details of students learning Chess, Squash and Carrom.
| College | Total Number of Students learning Chess and Squash | Difference between the Number Students learning Chess and Squash | Percentage of Students learning Carrom |
| A | 2100 | 300 | 30% |
| B | 1170 | 30 | 35% |
| C | 1260 | 140 | 40% |
| D | 1800 | 400 | 25% |
Note:
(1) Total number of students in a college = Number of Students learning Chess + Number of Students learning Squash + Number of Students learning Carrom.
(2) Every student in a college learns only one of the three games.
(3) Number of students learning Chess is more than the number of students learning Squash in each college.
In College B, if the ratio of the number of boys to girls is 5 : 4 and 30% of the girls are learning Carrom, then what is the number of boys learning Chess and Squash together ?
1
560
2
840
3
610
4
500