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Answer to Question #81547 in Math for hamza
Question #81547
A bottle contains 255 coins
1/3 of the coins are £1 coins
110 of the coins are 50p coins
the rest of the coins are 20p coins
work out the total value of the coins contained in the bottle
1/3 of the coins are £1 coins
110 of the coins are 50p coins
the rest of the coins are 20p coins
work out the total value of the coins contained in the bottle
Expert's answer
Number of £1 coins: N_1=255/3=85.
Number of 50p coins: N_2=110.
Number of 20p coins: N_3=255-85-110=60.
The total value of the coins:
T=N_1*1+N_2*0.5+N_3*0.2=85*1+110*0.5+60*0.2=£152.
Number of 50p coins: N_2=110.
Number of 20p coins: N_3=255-85-110=60.
The total value of the coins:
T=N_1*1+N_2*0.5+N_3*0.2=85*1+110*0.5+60*0.2=£152.
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