Question
A scored 45% marks and failed by 55 marks whereas B
scored 75% marks, which was 80 more than the passing marks of the examination. Find the total marks of the examination.Solution
Let the total available marks in the examination be 100x. Marks scored by A = 45% of 100x= 45x Marks scored by B = 75% of 100x= 75x According to question, => 45x + 55 = 75x – 80 => 30x = 135 => x = 4.5 Total marks of the examination = 100x = 450
P and Q can do a piece of work in 32 and 40 days respectively. They began to work together but P leaves after sometimes and Q completed remaining work i...
‘M’ alone can complete a work in 18 days. ‘N’ is 50% as efficient as ‘M’. How long will they take to complete the work together?
...36 women can complete a task in 20 days. If 18 women start the task and after 15 days ‘y’ more women join, ensuring the remaining work is completed ...
'A' can complete a certain task in 60 days, while 'B' can do the same in 45 days. 'A' starts the task and works alone for 18 days, after which 'B' joins...
John, Emily, and Michael can each complete a task in 15 days, 20 days, and 18 days, respectively. They decide to work on the task alternately, starting ...
Ajay, Bablu and Chirag can complete a certain work in 21, 28 and 15 days respectively. Ajay and Chirag started the work while Bablu joined them after 5 ...
'A' and 'B' can do a piece of work together in 30 days. They worked together for 18 days, and then left the work. The remaining job was finished by 'C' ...
- If Ankit takes four times the time that Ravi takes or five times the time that Sandeep takes to finish a task, and all three working together can complete ...
‘P’, ‘Q’ and ‘R’ can finish a task in 12 days, 36 days and 72 days respectively. ‘P’ and ‘Q’ begin the task. After ‘n’ days, ‘...
- A certain amount earns Rs. 2,400 as simple interest in 4 years at 12% per annum. If the same amount is invested at 8% per annum for 2 years, what will be t...
Relevant for Exams:
