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 in fractional form?

• A. ₹ $24\frac{1}{2}$
• B. ₹ $42\frac{1}{2}$
• C. ₹ $\frac{87}{2}$
• D. ₹ $40\frac{1}{2}$

Answer 1

The correct option is B

₹ $42\frac{1}{2}$

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

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

The cost of the pencil box is ₹42.50

In fractional form we can write it as $42\frac{1}{2}$