Question

sushma has a hobby of collecting coins. she has got some 50 paise and 25paise coins from one of her friends.which amount to 9 rupee.it contains twice as many 25 paise as 50 paise coins.how many coins of each kind does her purse contain ?​

Answer 1

Step-by-step explanation:

let the no. of 50 paise and 25 paise coins be x and y respectively.

} ATQ:

=) 50x + 25 y = 900

=) 25 ( 2x + y ) = 900

=) 2x + y = 900/25

=) 2x + y = 36 ~~~1

Also,

ATQ : 2x = y ~~~~ 2

Putting eq 2 in 1 , we get,

=) 2x + 2x = 36

=) 4x = 36

=) x = 36/4

=) x = 9

then , y = 2x = 2 × 9 = 18

# Hence , no. of 25 paise coins is 9

And , no. of 50 pasie coins is 18

Answer 2

Answer:

it contains twice as 25 praise coins