Question:
In Indus valley Civilisation (about $3000 \mathrm{BC}$ ), the bricks used for construction work were having dimensions in the ratio
(a) $1: 3: 4$
(b) $4: 2: 1$
(c) $4: 4: 1$
(d) $4: 3: 2$
Solution:
(b) In Indus valley Civilisation, the bricks used for construction work were having dimensions in the ratio length: breadth : thickness $=4: 2: 1$.