Articles practice exercises for Airforce exam Part 2

Q5 exercise- 2.1

Q4 exercise- 2.1

Q6, exercise- 2.1

Q7, exercise- 2.1

Question-2 exercise- 2.1

Question-2 exercise- 2.1

Mr. A writes an article. The article originally is error free. Each day Mr. B introduces one new error into the article. At the end of the day, Mr. A checks the article and has (2)/(3) chance of catching each individual error still in the article. After 3 days, the probability that the article is error free can be expressed as (p)/(q) where p and q are relatively prime positive integers. Let lambda=q-p , then find the sum of the digits of lambda .

class 10 exercise 8.4 question 4 part 1and2

In a factory the cost of manufacturing x articles is Rs. (20+2x) and the selling price of x articles is Rs. (2.5x).On the same graph paper, with the same axes draw two graphs, first for the cost of manufacturing against no. of articles and the second for the selling price against no. of articles. Take 2 cm=l10 articles on one axis and 2cm =Rs. 20 on the other axis. Provide for x upto 80. Use your graph to determine: (i) No.of articles to be manufactured and sold to reach breakeven point (no profit and no loss situation). (ii) The profit made when 60 articles are manufactured and sold.

The above bar graph shows the number of calories burned per minute for three types of exercise , assuming that the exercise is performed vigorously. Jackie spent an hour exercising vigorously . She spent twice as much time doing aerobics as she did walking, and 1 1/2 times as much time swimming as she did aerobics . According to the graph, how many calories did Jackie expect to burn during that hour of exercise ?