Question

10 Jenny has 12 marbles.

1
of these 12 marbles are large.
4
The rest of these 12 marbles are small.
Each large marble has a weight of 70 grams.
Each small marble has a weight of 50 grams.
Work out the total weight of the 12 marbles.​

Answer 1

620

Explanation:

12-1=11

11x50

1x70

add the two totals and you should get 620

Hope this helps!