A Kolkata music class has 100 students. 8 sing neither style, 16 sing both, and those who sing only Rabindra Sangeet are three times those who sing only film songs. How many sing Rabindra Sangeet?

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Accepted Answer

73. Let only film songs = x; then only Rabindra Sangeet = 3x. 3x + 16 + x + 8 = 100, so 4x = 76 and x = 19. Rabindra Sangeet = 57 + 16 = 73. 57 is only Rabindra Sangeet, 35 is the film-song circle 19 + 16, and 92 is everyone who sings at least one style.

A Kolkata music class has 100 students. 8 sing neither style, 16 sing both, and those who sing only Rabindra Sangeet are three times those who sing only film songs. How many sing Rabindra Sangeet?

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