RCC Structures Design
As per IS : 456, the reinforcement in a column should not be less than

0.8% and not more than 8% of cross-sectional area
0.7% and not more than 7% of cross-sectional area
0.5% and not more than 5% of cross-sectional area
0.6% and not more than 6% of cross-sectional area

ANSWER DOWNLOAD EXAMIANS APP

RCC Structures Design
If the length of a combined footing for two columns l meters apart is L and the projection on the left side of the exterior column is x, then the projection y on the right side of the exterior column, in order to have a uniformly distributed load, is (where x̅ is the distance of centre of gravity of column loads).

y = L/2 + (l - x̅)
y = L/2 - (l + x̅)
y = L/2 - (l - x̅)
y = L - (l - x̅)

ANSWER DOWNLOAD EXAMIANS APP