Question

10000 10"
8. 6 pipes fill a tank in 120 minutes, then 5 pipes will fill it in
(a) 100 min
(b) 144 min
(c) 140 min
(d) 108​

Answer 1

Step-by-step explanation:

1 pipe filled the tank

$120 \div 6$

$= 20$

Hence, 1 pipe need 20 minutes to fill

So, 5 pipes need

$100 \times 20$

$= 100$

Hence, 5 pipes need 100 minutes to fill.

Answer 2

Answer:

here,

time taken to fill 8•6pipes=120min

then,

time taken to fill 1 pipe=8.6\120

= 86/1200

=x

then,

then time taken to fill 5 pipe= 5×x