Question

Roshani has only ₹1 and ₹2 coins with her. If the total number of coins that she has is 50 and the amount of money with her is ₹75, then the number of ₹1 and ₹2 coins are, respectively​

Answer 1

Answer:

one rupee coin will be 25

and,2 rupee coin will be 25

Answer 2

Answer:

Step-by-step explanation:

Let number of  ₹ 1 coins = x

and number of  ₹ 2 coins = y

Now, by given conditions  x+y=50               …(i)

Also, x×1+y×2=75

⇒ x + 2y = 75                                               …(ii)

On subtracting Eq. (i) from Eq. (ii), we get

(x + 2y) – (x + y) = 75 – 50

⇒      y = 25

When y = 25, then x = 2