If one needs to score 34% to pass a test, the pass marks out of 40 would be:

 

If the value of a company stock drops from Rs. 25 per share to Rs. 21 per share, the percentage decrease per share is

20% of a man's salary is paid as rent, 60% are his living expenses and 10% are his savings. If he spends remaining  30 on the education of his children, find his salary

After deducting 60% from a certain number and then deducting 15% from the remainder, 1428 is left. What was the initial number?

If the price of pen decreases by 20%, then a man can buy 10 more pens for Rs 100. What is the new price (in Rs) of each pen?

After two successive discounts of 20% and 35%, an article is sold for Rs 50700. What is the marked price (in Rs) of the article?

Every month, Kritika spends 30% of her income on house rent and 60% of the rest on household expenditure. If she saves ₹ 6300 per month, what is her total monthly income?

The CO2 emissions in million metric tons over 3 years are given in the following table.

What is the increase in the percentage of CO2 emission from year 2016 to 2017?

A student multiplied a number by 4/5 instead of 5/4. What is the percentage error in the calculation?