Question

find cost of cementing floor and four walls of a swimming pool, which has length 13cm, breadth 17cm and height 6cm. Rate of cementing is Rs. 17 per square meter.​

Answer 1

Correct Question:-

Find cost of cementing floor and four walls of a swimming pool, which has length 13m, breadth 17m and height 6m. Rate of cementing is Rs. 17 per square meter.

Answer:-

★ Given:

• Length of swimming pool = 13 m

• Breadth of swimming pool = 17 m

• Height of swimming pool = 6 m

• Rate of cementing = ₹17 per m²

★ To Find:

• Cost of cementing of floor and four walls.

★ Formula used:

• Area of rectangle = length × breadth

• Area of 4 walls = 2(l+b) × h

★ Solution:

➢ Finding area of floor of swimming pool

Area of floor

= Simply area of rectangle

= length × breadth

= 13cm × 17cm

= 221 m²

➢ Finding area of 4 walls of swimming pool

Area of 4 walls

= 2(l+b) × h

= 2(13 + 17) × 6

= 2(30) × 6

= 2 × 30 × 6

= 360 m²

➢ Finding cost of cementing

Cost of cementing

= Area × Rate of cementing

= (221 + 360) × 17

= 581 × 17

= ₹ 9,877

∴ Cost of cementing is ₹ 9,877.

Answer 2

Step-by-step explanation:

☞ Question ::-

Find cost of cementing floor and four walls of a swimming pool, which has length 13cm, breadth 17cm and height 6cm. Rate of cementing is Rs. 17 per square meter.

☞ Given ::-

• Length of swimming pool = 13 m
• Breath of the swimming pool = 17 m
• Height of swimming pool = 6m
• Rate on the cementing = ₹17per m^2

☞ To Find ::-

Cost of cementing of floor of 4 walls ?

☞ Formula Used ::-

Area of rectangle = length × breadth

☞ Solution ::-

★ Finding area of floor of swimming pool.

Area of floor

➡ Length × Breadth

➡ 13 × 17

➡ 221 m^2

★ Finding area of 4 walls of swimming pool.

Area of 4 walls

➡ 2(L + B) × h

➡ 2(13 + 17) × 6

➡ 2 × 30 × 6

➡ 360 m^2

★ Finding cost of cementing.

Cost of cementing

➡ Area × Rate of cementing

➡ (221 + 360) 17

➡ 581 × 17

➡ ₹ 9, 877

$\bold\therefore \fbox{\fbox \color{navy}{Cost if cementing = \red{₹9, 877}}}$