Answer:
227.5 grams
Explanation:
We know that a single 10p coin weights 6.5 g
Now we want to find the weight of a bag of 10p coins, such that the net value is £3.50 (where the weight of the bag is neglected)
The value of a 10p coin is £0.10
So the first thing we need to find, is how many coins there are in the bag.
To find that, we need to find the quotient between the total value and the value of a single coin:
£3.50/£0.10 = 35
So in the bag, we have 35 coins, and each one of them weighs 6.5 grams
Then the total weight is 35 times 6.5 grams:
35*6.5 g= 227.5 grams