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Out of 300 students, 150 were studying Spanish, 80 were studying Frenc [#permalink]
1
Approach-1:

Quant-A: 150-50=100
Quant-B: 300-150-80+50 =120

Approach-2:
Attachment:
Approach-2.jpg
Approach-2.jpg [ 90.21 KiB | Viewed 1533 times ]


Approach-3:
Attachment:
Approach-3.jpg
Approach-3.jpg [ 83.51 KiB | Viewed 1513 times ]
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Out of 300 students, 150 were studying Spanish, 80 were studying Frenc [#permalink]
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