Question

The cost of an electric bulb is rs. 6 1/2. Find the cost of 50 bulbs

Answer 1

Answer:

325

Step-by-step explanation:

cost of one bulb=6 1/2= 13/2

so cost of 50 bulbs= 13/2×50

=325

Answer 2

Answer:

The cost of 50 bulbs is calculated to be Rs 325

Step-by-step explanation:

We need to use the unitary method of calculation for this question. As given we have,

The cost of 1 electric bulb = Rs 6 $\frac{1}{2}$

∴The cost of 50 bulbs = Rs 6$\frac{1}{2}$ × 50 = Rs 325

6 $\frac{1}{2}$ × 50 = $\frac{13}{2}$ × 50 = 13 × 25 = 325

Therefore, the cost of 50 bulbs is Rs 325.