Salman divided 76 'Being human' cycles divided into four categories proportional to 7,5, 3, 4, then calculated the number of cycles in the smallest categories.
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if 76 is divided into four parts proportional to 7,5,3.4 then the smallest part is:
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Correct option is A)
Four parts proportional to
7,5,3 and 4
∴ Four part are equal to7x,5x,3x, and 4x.
∴7x+5x+3x+4x=76
∴19x=76
∴x=
19
76
∴x=4
∴7x=4×7=28
∴5x=5×4=20
∴3x=3×4=12
∴4x=4×4=16
∴ For parts are 28,20,12 and 16.
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