Question

I got 16 numbers of one rupee &50 paise coins from shop in exchange for Rs. 10.Then how many number of 1 rupee coins I got?​

Answer 1

Answer:

16

Step-by-step explanation:

because the other coins are of 50 paise.

Answer 2

Answer:

Totally 4 one rupee coins you had got.

Step 1:

Let x be the number of 1 rupee coins

50 paise coins = 16 - x

Step 2:

Total value of 1 rupee and 50 paise (i.e. $\frac{1}{2}$ rupee) coins should be equal to Rs.10.

Thus, $x \times 1 + (16 - x) \frac{1}{2}= 10$

Step 3:

$x + 8 - \frac{x}{2}= 10$

$\frac{x}{2}$= 10 - 8 => $\frac{x}{2}$= 2 => x = 4.

Step 4:

The number of 1 rupee coins = 4.

Number 50 paise coins = 12.