No. of students weighing less than $56$kg are

Q. The number of students weighing less than 30 kg in a section is ten. There are 15 students who weigh less than 35 kg, and 20 students who weigh less than 40 kg.
The frequency table for the given data is a follows: Weight Range Number of Students

$0<\text{Weight (kg)}<30$	$10$
$0<\text{Weight (kg)}<35$	$15$
$0<\text{Weight (kg)}<40$	$20$

Then there are
students who weigh more than or equal to 35 kg.

Q. If a kid weighing less than 35 kg is weak, how many weak students are there in the school?​

Q. In a farm house, there are $30$ chickens weighing less than $2$ kg, $70$ chickens weighing less than $4$ kg and $90$ chickens weighing less than $6$ kg. Idendtify the correct histogram plot for the same.

Q. For the following data obtain the mode.

Weight (in kg)	$21-25$	$26-30$	$31-35$	$36-40$	$41-45$	$46-50$	$51-55$	$56-60$
No. of students	$5$	$4$	$3$	$18$	$20$	$14$	$8$	$3$

Q. During the medical check up of 35 students of a class, their weights were recorded as follows:

Weight (in kg)	Number of students
Less than 38 Less than 40 Less than 42 Less than 44 Less than 46 Less than 48 Less than 50 Less than 52	0 3 5 9 14 28 32 35

Draw a less than type ogive for the given data. Hence, obtain the median weight from the graph and verify the result by using the formula.