Question

if 6 container larries can transport 135 tonnes of goods in 5 days. how many more lorries are required to transport 180 tonnes of goods in 4 days​

Answer 1

Answer:

8

Step-by-step explanation:

=135/6

=22.5

=135+22.5+22.5

=180

=8

in one container 22.5 tonnes where Carry

Answer 2

The number of more lorries required =4

Explanation:

Let L= Number of lorries

D = Number of days

G = Amount of goods  ( in tons)

Here , L $\alpha$ G

$G\alpha\dfrac{1}{D}$

Then,  $L_1D_1G_2=L_2D_1G_1$

Put $L_1=6,\ \ G_1=135\ \ D_1=5$

and $G_2=180$  $D_2=4$

, we get

$(6)(5)(180)=L_2(4)(135)\\\\ L_2=\dfrac{(6)(5)(180)}{(4)(135)}=10$

Hence , the number of lorries required to transport 180 tonnes of goods in 4 days =10

The number of more lorries = 10 -6 = 4

Hence, the number of more lorries required =4

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25 pumps can lift 4000 tonnes of water by working 10 hours a day,​

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