Question
A person sells each package of snacks for Rs. 14 each.
On Monday, he sold 130 packages which was 50 more than that on Tuesday but 30 less than that on Wednesday. If he spends 55% of his income earned by selling snack packages on these 3 days, then find his saving in given 3 daysSolution
Number of packages of snack sold on Monday = 130 Number of packages of snack sold on Tuesday = 130 – 50 = 80 Number of packages of snack sold on Wednesday = 130 + 30 = 160 Therefore, his total income of 3 days = (130 + 80 + 160) × 14 = 370 × 14 = Rs. 5180 Therefore, savings of person in given 3 days = 0.4 × 4160 = Rs. 1664
At a round table, n persons are seated on n chairs. The probability that two friends from same college are sitting next to each other, is:
The deseasonalised time - series data will have only trend (T), cyclical (C) and irregular (I) components and is expressed as:
The grouped data for the observation are as follows.
Class :Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2-4Â Â Â Â Â Â Â Â 4-6Â Â Â Â Â Â Â Â Â 6-8<...
These seventh decile (D7) of data set 4, 3, 10, 9, 1 is
The coefficient of correlation is the _________ of coefficients of regression.
Five persons A, B, C, D and E occupy seats in a row at random. The probability that A and B sit next to each other is:
Which option is WRONG?
Which option is incorrect for the component of ti.me series.
