Question
₹ 27,600 is distributed among Thomas, David and Vijay
in such a manner that 1/7 of the share of Thomas, 1/3 rd of the share of David and 1/2 of the share of Vijay are equal. Find the sum of the shares of Thomas and Vijay.Solution
Solution-
Thomas, David, Vijay
1/7 1/3 ½ =x
7x 3x 2x
ATQ-
12x=27600
X=2300
Thomas +Vijay =7x+2x=9x
=9×2300=20700Rs.
For the two variables X and Y, the following observations are tabulated
X: 3 4 �...
Two data set of size 9 and 6 have standard deviation 3 and 4 respectively and arithmetic means 3 and 3 respectively. The standard deviation of combined...
From standard pack of 52 cards, 3 cards are drawn at random without replacement. The probability of drawing a king, a queen and a jack in order is
For ANOVA table
the F - statistics is:
A physical instructor claims that the mean weight of students in school is greater than 82 kg with standard deviation 20. If a sample of size 81 studen...
Which of the following satisfies the time and factor reversal test?
For a distribution, the mean is 10, variance is 16, Y1 is +1 and β2 is 4. The distribution is:
With reference to index numbers, which of the following statements is true?
For a group of 100 students, the mean and standard deviation of scores were found to be 30 and 5 respectively. Later on it was discovered that the scor...
The mean deviation and coefficient of mean deviation of 5 observation are 1.2 and 0.4. If the sum of the first four terms is 10, then the fifth term is...
