Mass box a = 10 grams; mass box b = 5 grams; mass box c—made of one a and one b how many boxes of b would be required to make 30 grams of c?

Two boxes of B would be required.

Explanation: From given information, A = 10 grams and B = 5 grams

C is made up of one A and one B box.

So, mass of C = mass of A + mass of B

mass of C = 10 g + 5 g = 15 g

number of boxes of C in 30 grams will be =

= 2 boxes

So, if we want to make the two boxes of C then we also have to double the number of boxes of A and B.

Hence, to make 30 grams of C, we need to take two boxes of B since each box of C requires one box of A and one box of B.

h let me think

a:

by the combination of an unlimited number of elements