Question
The weight of a cubic metre metal is 1215 kg. It is
melted and cast into a square rod of 9m length. A solid cube of maximum size is taken out from one end. Find the weight of the solid cube?Solution
1 m³ = 1215 kg ~ 
Volumes are equal 9 × x × x = 1 x² = 1/9 ⇒ x = 1/3 
[height is also same] Volume = (1/3)³ = 1/27 m³ Weight ⇒ 1/27 × 1215 = 45 kg
The principle that suggests recording expenses only when they are realized, and income only when they are certain, is known as:
If the sum of the roots of the quadratic equation 5x² + bx + 4 = 0 is 9. then find the value of b.
What is the length of the hypotenuse in an isosceles right-angled triangle if one of its equal sides measures 6√2 cm?
Who among the following was the Chairman of the Working Group for determining the methodology for construction of Producer Price Index (PPI) in India (...
The Polymerase Chain Reaction (PCR) is used to :
The value of
A started a business with an investment of Rs.35000. After few months B joined him with an investment of Rs.42000. If at the end of the year, they share...
Which principle of industrial relations emphasizes the importance of collaboration and teamwork between employers and employees?
With reference to the Finance Commission of India, consider the following statements:
1. According to the constitution of India, the members o...
Study the given letter, symbol series and answer the question that follows.
L @ S * J ^ B U # W R < E @ N S # B * H ! A & L < W Q
How ma...
