the deminson of a rectangular water tank are 2m 75cm by 1m 80cm by1m 40cm .How many litres of water does it hold when filled to the brain
q no3 )
A solid rectangular piece of iron measures 1.05m multiply 70cm multiply 1.5cm .Find the weight of this piece in kilograms if 1cmcube of iron weighs 8gram
Answers
Solution:-
Given : Length of the rectangular water tank = 2 m 75 cm = 275 cm
Breadth of the rectangular water tank = 1 m 80 cm = 180 cm
Height of the rectangular water tank = 1 m 40 cm = 140 cm
Volume of the water tank = L × B × H
= 275 × 180 × 140
Volume of the water tank = 6930000 cu cm
Now, we know that 1 liter = 1000 cu cm
So, capacity of the water tank = 6930000/1000
6930 liters
______________________________________________________
Dimensions of the cubiod is
Length = l = 1.05 m
l = 1.05 × 100 cm = 105 cm
Breadth = b = 70 cm
Height = h = 1.5 cm
Volume of the solid = lbh
V = 105 cm × 70cm × 1.5 cm
V = 11025 cm³
According to the problem given,
1 cm³ iron weighs 8 grams
11025 cm³ iron weighs = 8 ×11025 gm
= 88200grams
= 88200/1000kg
=88.2kgs
Therefore, Solid weighs 88.2 kgs