Question

a) A 56.8 kg concrete slab can be balanced by two concrete pillars, each weighing
41.3 kg. How many concrete pillars are needed to support slabs that weigh 681.6
kg? Calculate the total weight of the slabs and the pillars.​

Answer 1

Answer:

•To find:-

Calculate the total weight of the slabs and the pillars.

•Solution:-

We have given that a 50 6.8 kg concrete flap can be balance by to concrete pillars.

•So,

→56.8 kg concrete slab can be balanced by 2 pillars.

•step by step explanation:-

1 kg concrete slab can be by

( 56.8 / 2 )

681.6 concrete slab can be balanced by

$\begin{gathered}(681.6 \times 2) \div (56.8) \\ = 24 \: \: pillars\end{gathered}$

•Now:-

Weight of 1 pillar = 41.3 kg

So,

Weight of 24 pillars

➡41.3 × 24

➡991.2 kg

Therefore,

The total weight of the slab and the pillars are

Total weight of the slab = 681.6 kg

Total weight of the pillars = 991.2 kg

so,

➡681.6 + 991.2

➡1672.8 kg

•Required Answer:-

The total weight of the slab and the pillars is 1672.8 kg.

$\huge \green{ \boxed{ 1672.8kg}}$