Q. 13 : 1 mark in 1:08 min.
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Q. 14 : 1 mark in 1:08 min.
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Q. 15 : 4 marks in 4:30 min.
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Q. 16 : 3 marks in 3:22 min.
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Q. 17 : 4 marks in 4:30 min.
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Q. 18 : 6 marks in 6:45 min.
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