Question

9. A rectangular tank of size 5 mx 4 m x 2 m. The cost of painting is Rs. 25 per sq. m The cost of painting its outer surface is​

Answer 1

Given:

Dimensions of the tank are 8m×4m×2m

Solution:

As we know:

$\underline{\fbox{\bold{Area_{(cube)}}}$

So, the area of the tank will be:

$\implies{5×4×2}$

$\bold{\implies{40m³}}$

And, the cost of painting the tank will be:

$\implies{40×25}$

$\bold{\red{\implies{\underline{\underline{₹1,000}}}}}$

_____________________________

Answer 2

= 5×4×2

= 40 m³

= 40 ×25

= 1000

जी चाहे कि दुनिया की हर एक फ़िक्र भुला कर,

दिल की बातें सुनाऊं तुझे मैं पास बिठाकर।

for you mam