Question

a rectangular tank is 25m long and 7.5 m deep .if 540m^3 of water to be drawn off the tank,the level of water in the tank goes down by 1m :calculate the width of the tank

Answer 1

Answer:

ok

Step-by-step explanation:

log

10

250=log(10×25)=log

10

10+log

10

25=1+log

10

25.....................(log

10

10=1)

2log

10

x+1=1+log

10

25

i.e. 2log

10

x=log

10

25

But 2logx=logx

2

.....................(Power law)

log

10

x

2

=log

10

25

x

2

=25

i.e. x=5

∴log

10

2x=log

10

10=1

hope it helps

thank you ☺✌