Question

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

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

Answer 1

The correct option is C

₹ 42.50

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

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

Hence, the cost of the books is ₹ 42.50