Question

5 books of type A cost Rs 20 and 4 books type B cost Rs 12. How much would 2 books of Type A and 3 books of type B cost?

• A. Rs 15
• B. Rs 16
• C. Rs 17
• D. Rs 20

Answer 1

The correct option is C Rs 17

For Type A
Value of 5 books = Rs 20
$\Rightarrow$ Value of 1 book $=\frac{20}{5}=Rs4$

$\therefore$ Value of 2 books of type A = $4\times 2=Rs8$

Similarly, for Type B
Value of 4 books = Rs 12
$\Rightarrow$ Value of 1 book $=\frac{12}{4}=Rs3$

$\therefore$ Value of 3 books of type B = $3\times 3=Rs9$

$\therefore$ Required value = Rs 8 + Rs 9 = Rs 17.