GATE BT Practice Questions - Graduate Aptitude Test In Engineering - Biotechnology Exam

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If the cost of 6 pens and 9 notebooks is INR 480, and the cost of 4 pens and 5 notebooks is INR 280, what is the cost of one notebook?

INR 30 INR 35 INR 40 INR 45

Correct Answer:

INR 40

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