1. A petrol pump had 75,000 litres of petrol on Monday before it started selling petrol. The following table shows the amount of petrol sold in five days of a week.
The Following details are also known from the table.
(a) The amount of petrol sold on Tuesday is equal to the amount of petrol left on Friday.
(b) On Thursday 7,218 litres more petrol was sold than that on Friday.
Using the given details, find all the missing values in the table.
Answers
Given : A petrol pump had 75,000 litres of petrol on Monday before it started selling petrol. The following table shows the amount of petrol sold in five days of a week.
To Find : P , Q , R , S , T , U and V
Solution:
Started with 75,000 litres
Sold on Monday = 13250
so Left on end of Monday = P = 75000 - 13250 = 61750
Start on Tuesday = Left on end of Monday = 61750
Left on Tuesday = 50000
Sold on Tuesday = 61750 - 50000 = 11750 = Q
The amount of petrol sold on Tuesday is equal to the amount of petrol left on Friday.
V = Q = 11750
50000 - R = S
S - T = 21873
21873 - U = V = 11750
=> U = 10123
Sold on friday = 10123
On Thursday 7,218 litres more petrol was sold than that on Friday.
T = 10123 + 7218 = 17,341
S - T = 21873
=> S - 17,341 = 21873
=> S = 39,214
50000 - R =39,214
=> R = 10786
Here is Table:
75000
13250 61750
11750 50000
10786 39,214
17,341 21873
10123 11750
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