Question

9. Mona has 25p coins and 50p coins. The number of 25p coins is thrice the number of 50p coins. If the total value of money is Rs. 75, find the number of 25p and 50p coins she has.​

Answer 1

Answer:

60 25p coins ; 180 50p coins

Step-by-step explanation:

Let the number of 50p coins be c.

Let the number of 25p coins be 3c.

Let the value of 50p coins be 50*1c = 50c

Let the value of 25p coins be 25*3c = 75c

ATQ,

50c + 75c = 75*100     {Rs. 75 = 75*100paise}

125c = 7500

c = 7500/125

c = 60

Thus, number of 50p coins = 1c = 60 coins

         number io 25p coins = 3c = 180 coins

Answer 2

Answer:

Answer:

60 25p coins; 18( 50p coins

Step-by-step explanation:

Let the number of 50p coins be c.

Let the number of 25p coins be 3c.

Let the value of 50p coins be 50^ * 1c=50c

Let the value of 25p coins be 25^ * 3c=75c

ATQ,

50c+75c=75^ * 100

{Rs. 75=75^ * 100p }

125c = 7500

c = 7500/125

c = 60

Thus, number of 50p coins = 1c = 60coins

number io 25pcoins = 3c = 180coins