Akshaya has 2 rupee coins and 5 rupee coins in her purse. If in all she has 80 coins totalling ₹ 220, how many coins of each kind does she have.
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Answer:
Number of 2 rupee coins = 60
Number of 5 rupee coins = 20
Step-by-step explanation:
Let number 2 rupee coins be x.
Let number 5 rupee coins be y.
x + y = 80 ( she has 80 coins totally)--------> 1
2x + 5y = 220 ------------>2
statement 1 * by 2 2x + 2y = 160
statement 2 2x + 5y = 220
subtrace 1 - 2----> - 3y = - 60
y = -60/ -3
y = 20
x = 60
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