Question

2 There are 5 tanks of equal capacity containing oil in the
ratio 8:9:10:14:9. How many tanks are at least half full if
the total volume of the oil in tanks is 50% of the total
capacity of tanks?​

Answer 1

Two tank tank third and tank forth are half filled

Step-by-step explanation:

Let the total capacity of all the tank is 100 liters

So capacity of each tank is $=\frac{100}{5}=20liters$

As according to question it is half filled so tank is filled up to 50 liters

Ratios of 5 tanks are 8:9:10:14:9

So let 8x:9x:10x:14x:9x

Sum of ratio = 8x+9x+10x+14x+9x = 50x

So oil of first tank $=\frac{8x}{50x}\times 50=8liter$

oil in second tank $=\frac{9x}{50x}\times 50=9liter$

oil in third tank $=\frac{10x}{50x}\times 50=10liter$

oil in forth tank $=\frac{14x}{50x}\times 50=14liter$

oil in fifth tank $=\frac{9x}{50x}\times 50=9liter$

In two tanks , tank third and tank forth are half filled

Learn more

An oil tank is 9/10 full. When 50 liters of oil are removed, the tank is 5/6 full. Find the capacity of tank in liter.

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