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Karo-lina-s [1.5K]
3 years ago
12

1. At a speed of 80km/h, it takes 10hrs to travel between Abuja and Lagos. How long will it takes to cover the same distance at

the speed of 100km/h?
2. A swimming pool takes 36hrs to fill using three identical pumps. If the pool needs to be filled in 9hours, how many pump will be needed? Please I need my answer ASAP
Mathematics
2 answers:
levacccp [35]3 years ago
6 0

Answer:

1) 8 hours

2) 12 pumps

Step-by-step explanation:

1)

Distance travelled=800 km

Because if you use the speed distance time triangle, 80*10=800

We can then use this to find out how long it would take to travel it at a different speed.

800km/100=8 so it takes <u><em>8 hours</em></u>

2)

36*3=108 so if there was only one pump, it would take 108 hours to fill the pool.

108/9=12 so you would need <u><em>12 pumps</em></u>

Softa [21]3 years ago
3 0

Answer:

1. 8 hours 2. 12 pumps

Step-by-step explanation:

1. 80 ×10=800

there are 800 miles between abuja and lagos

800÷100=8

it will take 8 hours

2. with 3 pumps it takes 36 hours. you need to be 4 times quicker so you need 4 times more pumps.

4×3=12 pumps

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