Question
A shopkeeper sold an article for Rs. 700 after offering
a discount of 20%. If he earned a profit of 25%, then find the ratio of cost price to the marked price, of the article.Solution
Marked price of the article = 700 ÷ 0.8 = Rs. 875 Cost price of the article = 700 ÷ 1.25 = Rs. 560 Required ratio = 560:875 = 16:25
The most appropriate diagram to represent data relative to monthly expenditure on different items of a family is -
Laspeyre's formula has ___________ bias and Paasche's formula has _________ bias.
Which of the following is not a cause of rightward shift of demand curve?
Which of the following is a second-order condition of short-run equilibrium of firm under perfect competition?
Two random variables x and y have the following regression equations -
3x + 2y – 26 = 0
6x + y – 31 = 0
then, the mean values o...
Which of the following statement is not true?
If x and y are two random variables and a, b, c, d are any numbers provided a ≠0, c ≠0, then correlation co-efficient between ax + b and cy + d is...
A statistician collects data on production of rice from 1990 to 20 2 0 and classifies it year wise. Which of the following type of classification of da...
Which of the following statement is true for NRR?
A given data has mean = 6.5, median = 6.3 and mode = 5.4. It represents -
