Question
The average mark obtained by 150 candidates in a certain
examination is 45. If the average marks of passed candidates are 55 and that of the failed candidates is 25, then what is the number of candidates who passed in the examination?Solution
According to question, => 55 × x + 25 × (150 − x) = 150 × 45 => 55x + 3750 – 25x = 6750 => x = 100
More Ratio Questions
Which of the following best defines Tax buoyancy?
...
The principle of indemnity aims to prevent:Â
In an economy, head count ratio is the measure of:
...
What is a Green Index?
Indian economy is a
The Indian economy can be most appropriately described as a ______ economy.
Which Author has been selected for Saraswati Samman 2022?
____provides a mutually acceptable solution between both the disputing parties and brings about speedy settlement of disputes without resorting to strik...
What describes a situation where the rate of inflation is slowing down?
What is Demand Pull Inflation?
