Aruna Only Coins Total Number Coins That Amount Money With Then Number Coins Respectively

Aruna has only ₹ 1 and ₹ 2 coins with her. If the total number of coins that she has is 50 and the amount of … 15 and 35 …

Answers:

(d) 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 = 25