Question

in a bag there are 50 paise coins and 25 paise coin. if the total number of coin is 50 and there total value is 13 rupees find the number of coin and each​

Answer 1

Answer:

let A be the number of 50 paise coins

and

B be the number of 25 paise coins

so now,

A+B=50 ....(1)

50A+25B= 1300

[ Rs.13 = 1300 paise]

2A+B=52 ....(2)

On subtracting eq.(1) and eq.(2) we get

A=2

so,

B=48

Hence there are 2 coins of 50 paise and 48 coins of 25 paise.

Answer 2

Answer:

since there are 25 coins if there are x number of 50 paise coins,the number of 50 paise coins will be 25-x

the value of the coins will be

50x+25x(25-x)=25x+625.

the value of the coins is rs .50 =850 paise.

therefore 25x+625=850.

or 25x=850-625

=225

or x = 225/25

=9

therefore the number of 50 paise coins is 9 and number of 25 paise coins will be 25-9=16