Question

1. A cuboidal tank is 8m long, 6m wide and 2.5m deep...... How many litres of water can it hold then? 2.....The class marks of classes in a distribution are 6,10,14,18,22,26,30. Find (a). Class size (b) Lower limits of second class (c).Upper limits of last class (d) Third class 3. Find the value of 3x+1,if median of 2, 3, x, x+2, 11, 17 is 9. (The observations are arranged in ascending order of magnitude.) 4. The perimeter of a rectangle is 70cm. Write a linear equation which represents this data and draw its graph. 5.Write three linear equation which pass through the (1,1). 6. Find the area of figure formed by joining the midpoints of adjacent sides 12cm and 16cm of a rectangle. 7.Draw a triangle in which BC=3.4cm, angle B=30 degree and AB-AC=1.5cm

Answer 1

1.
Length is 8 m
Breadth is 6 m
Height or altitude is 2.5 m
Then
Volume of cuboid is l*b*h
8*6*2.5=105meter cube
Therefore it can hold 105 litres of water