CAT 2018 DILR Solution | Set - 2 | Satellites

CAT 2018 DILR Question | Satellites | CAT LRDI 2018:
Question:
1600 satellites were sent up by a country for several purposes. The purposes are classified as broadcasting (B), communication (C), surveillance (S), and others (O). A satellite can serve multiple purposes; however a satellite serving either B, or C, or S does not serve O.
The following facts are known about the satellites:
The numbers of satellites serving B, C, and S (though may be not exclusively) are in the ratio 2:1:1.
The number of satellites serving all three of B, C, and S is 100.
The number of satellites exclusively serving C is the same as the number of satellites exclusively serving S. This number is 30% of the number of satellites exclusively serving B.
The number of satellites serving O is the same as the number of satellites serving both C and S but not B.
#CAT2018
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