Question

A purse has some rupee 2 coins and rupee 5 coins. The total value of the conis is rupee 165. If the number of rupee 5 are 5 more than the rupee 2 coins , find how many coins of each are there in the purse ​

Answer 1

Answer:

answer

Step-by-step explanation:

let the number of rupees to coins Be X than that of rupees 5 coins will be X + 5 their total value in terms of X is 2 x + 5 x + 5 is equal to 2 X + 5 x + 25 this equal to 165 2 X + 5 x + 25 is equal to 165 7 x is equal to 140 x is equal to 20 the rupees 5 coins are the 20 + 5 is equal to identify the total number of coins is 25 + 20 is equal to

Answer 2

Step-by-step explanation:

Let

no. of rupee 2 coin be a, and

no. of rupee 5 coin be b

b = a + 5......eqn 1

total amount = 165

2"a + 5*b = 165

putting value of b from eqn 1

2a + 5(a + 5) = 165

2a + 5a + 25 = 165

7a = 165 - 25

7a = 140

a = 140/7

a = 20

this gives b = a + 5 = 25

thus,

no. of 2 rupee coin = 20

no. of 5 rupee coin = 25