Question

In a Residential Society, Rain water is
stored in underground
water tank. The water is stored at the rate
of 30 cubic cm per
second. If water stored is y cubic cm in x
second, write a linear
equation in two variables. Draw its graph
From the graph read the following:
(1) Total water stored in 3 seconds.
(2) In how many seconds water stored is
120 cm?​

Answer 1

Rectangular roof : l=22m,b=20m

Cylindrical tank : r=1m,h=3.5m

The volume of tank =πr

2

h

=

7

22

×1×1×3.5

=

7

22

×

10

35

=11m

3

Area of roof =l×b=22×20=440m

2

Rainfall =

Area of roof

Volume of tank

∴ Rainfall =

440m

2

11m

3

=0.025m

∴ Rainfall is 2.5cm

Answer 2

Answer:

The correct answer to this question is-rainfall is 2.5cm