Advertisements
Advertisements
Question
A tank can hold 50 litres of water. At present, it is only 30% full. How many litres of water shall I put into the tank so that it becomes 50% full?
Advertisements
Solution
Capacity of tank = 50 litres
30% of capacity = 30% of 50 litres
= `30/100xx50` = 15 litres
50% of capacity = 50% of 50 litres
= `50/100xx50` = 25 litres
Water need to bring it to 50% capacity
= 25 − 15 = 10 litres
APPEARS IN
RELATED QUESTIONS
Find the number a, if 8.4% of a is 42
Find the percentage change, when a number is changed from :
100 to 80
In a combined test in Maths and Chemistry; 84% candidates passed in Maths; 76% in Chemistry and 8% failed in both. Find: if 340 candidates passed in the test; then how many appeared?
A number increased by 15% becomes 391. Find the number.
A number decreased by 23 % becomes 539. Find the number.
Two numbers are respectively 30 percent and 40 percent less than a third number. What percent is the second of the first?
When 60 is subtracted from 60% of a number to give 60, the number is
A picture of chess board is given. The squares that do not have the pieces
A cricket team won 70 matches during a year and lost 28 matches and no results for two matches. Find the percentage of matches they won
In Delhi University, in the year 2009 – 10,49,000 seats were available for admission to various courses at graduation level. Out of these 28,200 seats were for the students of General Category while 7,400 seats were reserved for SC and 3,700 seats for ST. Find the percentage of seats available for students of SC Category and ST Category taken together.
