Question

Sumeet purchased a book costing Rs. 24.75 and a pencil box. If he got back Rs. 32.75 when he gave a Rs.100 note. What is the cost of the pencil box?

• A. Rs. 24.75
• B. Rs. 42.75
• C. Rs. 42.50
• D. Rs. 45.20

Answer 1

The correct option is C

Rs. 42.50

Cost of book + cost of pencil box + Rs.32.75 = Rs.100
$\Rightarrow$ Cost of pencil box = Rs.100 - cost of book - Rs. 32.75
$\Rightarrow$ Cost of pencil box = Rs.100 - Rs.24.75 - Rs.32.75

$100.00$
$-32.75$
$-24.75$
$\overline{}$
$42.50$
$\overline{}$

Hence, the cost of the books is Rs. 42.50