Vanessa had twice the number of metallic bricks as Neave. Vanessa used all her bricks to build 7 identical houses. Neave used all his bricks to build 5 identical houses. Vanessa used 9 more bricks than Neave for each house. How many bricks did Neave have?

	Vanessa	Neave
Number	7	5
Value	1 u + 9	1 u
Total value	7 u + 63	5 u

Number of metallic bricks that Neave used for each house = 1 u
Number of metallic bricks that Vanessa used for each house = 1 u + 9

Number of metallic bricks that Neave had
= 5 x 1 u
= 5 u

Number of metallic bricks that Vanessa had
= 7 x (1 u + 9)
= 7 u + 63

Vanessa had twice the number of metallic bricks as Neave.

2 x 5 u = 7 u + 63
10 u = 7 u + 63
10 u - 7 u = 63
3 u = 63

1 u = 63 ÷ 3 = 21

Number of bricks that Neave had
= 5 u
= 5 x 21
= 105

Answer(s): 105