For the following questions answer them individually
The average of four numbers A, B, C and D is 40. The average of four numbers A, B, E and F is also 40. (A, B are common). Which of the following must be true ?
A select group of 4 is to be formed from 8 men and 6 women in such a way that the group must have atleast one woman. In how many different ways can it be done ?
In a sample , if a person is picked up randomly, the probability that the person is a smoker is $$\frac{3}{5}$$, and that of the person being male is $$\frac{1}{2}$$ .What is the probability that the person is both male as well as a smoker ?
On five chairs arranged in a row, five persons A, B, C, D and E are to be seated in such a way that B and D always sit together (side by side). In how many different ways can it be done ?
The average (Arithmetic Mean) and the Median of a set of numbers is the same. Which of the following must be true ?
Study the following table carefully to answer the questions given below:
In which of the following years there was maximum improvement in degree of malnutrition in comparison to previous year ?
Talking all the years together mild degree is ‘’approximately’’ what per cent of malnutrition ?
Out of the total number of survey in 1998, how many cases were of moderate and serious degree of malnutrition ?
From 1998 to 2004, ‘’approximately’’ what per cent of decrease was observed in moderate cases %?