In a species, the weight of newborn ranges form 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99 of the infants born with weights from 2 to 2.5 or 4.5 to 5 kg die. Which type of selection process is taking place?

In a species the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place?

The average weight of 6 techers in a school is 47.3 kg. When a new teacher joined them, the average weight is increased by 5.3 kg . Then find the approximate weight of the new teacher.

Data from experimental survey in India suggests that, weight of new borns, ranges between 2 kg to 5 kg but majority of surviving new borns are around 3 kg in weight. Which of the following is correct for such type of natural selection when the graph is plotted between number of surviving babies and their weight?

The average weight of A,B and C is 65 kg. If the average weight of A and B is 63.5 kg, and the average weight of A and C is 67.5 kg , then the weight of A (in kg) is :

The average weight of A,B and C is 65 kg. If the average weight of C and B is 61.5 kg, and the average weight of A and C is 68.5 kg, then the weight of C (in kg) is:

The weight of two from balls are 3.5 kg and 7.5 kg. What is the percentage weight of the first ball with respect to second ball ?

The weight of Rajesh is 5 kg less than Ram's weight and weight of Neha is 3 kg more than Ram's weight. If the total weight of three is 103 kg, then weight of Ram is:

The average weight of 45 students in a class is 52 kg. 5 of them whose average weight is 48 kg leave the class and other 5 students whose average weight is 54 kg join the class. What is the new average weight (in kg) of the class?