. Aruna has only Re1 and Rs 2 coins with her
If the total number of coins that she has is 50 and the amount of money with her is Rs. 75 , then the number of Re. 1 and Rs. 2 coins are respectively
A: 35 and 15
B: 35 and 20
C: 15 and 35
D: 25 and 25
Best Answer
Explanation:-
Given,
Aruna has Rs. 1 and Rs. 2 coins with her.
We have to find the number of Re.1 and Rs.2 coins.
Let the number of Re.1 coins be x
Let the number of Rs.2 coins be y.
Given,
x + y = 50 ------------- (1)
Given, the amount of money is Rs. 75
So, x + 2y = 75 --------------- (2)
On solving the linear equations (1) and (2),
First subtracting (2) and (1),
By grouping,
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Therefore, the number of Rs.1 and Rs.2 coins are 25 and 25.
Final answer:-
Hence ,the correct option is (D).Therefore, the number of Rs.1 and Rs.2 coins are 25 and 25.
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