Question
The ratio of a closed cuboid's length, width, and height
is 5: 4: 3. The total surface area of this cuboid is 1500 cm². Find the volume (in cm³) of this cuboid.Solution
The ratio of the l, b, and h = 5: 4: 3 l=5x b=4x h=3x surface area of cuboid = 2(lb +bh +hl) 1500= 2(20x2+12x2+15x2) 750=47x2 x2=750/4 =15.96 x=4 so now the volume of the cuboid = 60×64=3840 cubic cm.
Which one of the following is used to remove Astigmatism for a human eye?
In gymnastics, which event is performed on a large floor mat?
In which form is the supplied heat energy stored during change in temperature of substance?
Which of the following physical quantities is scalar quantity ?  Â
A storm is predicted if atmospheric pressure:
The amplitude of the sound wave depends on the
Which statement(s) about solenoids are INCORRECT?
S.I unit of Inductance is
Which of the following represents Pressure?
Which type of mirror is utilized in solar furnaces to focus sunlight and generate heat?
Relevant for Exams:
