1.

A restaurant hall is 20 metre long, 15 metre wide and 5 metre high. Its interior has to be covered with mat. What will be the total expenditure if it costs $ 60 per square metre?a) $64000 b) $57000 c) $52000 d) $45000

Answer»

Answer:

The cost of putting the mat is $ 57,000.

Step-by-step explanation:

GIVEN :

Length = 20 m

Width = 15 m

Height = 5 m

Rate = $ 60 per sq.m

To Find :

The total expenditure

Solution :

Find the Total surface AREA of hall -

⇒ 2[lh + BH + lb]

⇒ 2[20 × 5 + 15 × 5 + 20 × 15]

⇒ 2[100 + 75 + 300]

⇒ 2[475]

⇒ 950 m²

\rule{300}{1.5}

Cost of putting the mat -

⇒ 950 × 6

⇒ 57000

THEREFORE, the cost of putting the mat is $ 57,000.



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