Question

If the area of the parallelogram with $\vec{a}$ and $\vec{b}$ as two adjacent sides is 15 sq.units then the area of the parallelogram having $3\vec{a}+2\vec{b}$ and $\vec{a}+3\vec{b}$ as two adjacent sides in sq.units is

• A. 45
• B. 75
• C. 105
• D. 120

Answer 1

Answer: (C)

105

Answer 2

The correct answer is (C) : 105.