Question
A jug initially contains 80 liters of a mixture of milk
and chocolate, with the quantity of chocolate being 30% of the total mixture. A liters of the mixture is taken out and replaced by chocolate, and the same quantity is repeated once more. If the final quantity of milk in the jug is 31.5 liters, what is the value of A?Solution
ATQ, we can say that, Milk in 80 liters = 80 × 70/100 = 56 liters chocolate in 80 liters = 80 × 30/100 = 24 liters 31.5 = 56 × (1 – x/80)2 4.5/8 = (1 – x/80)2 4.5 × 80 × 80 / 8 = (80 – x)2 60 = 80 – x x = 20 liters
The splitting up of white light into seven colours on passing through a glass prism is called as
The Dimensions of “G” (Universal Gravitation Constant) is:
What term describes the rate of change of velocity?
S.I unit of Inductance is
A concave lens has a focal length 15 cm. If the object is placed at 30 cm from the lens, what is the image distance?
What is the SI unit of G — the universal gravitation constant?
In the names Solanum tuberosum (potato), Mangifera indica (mango) and Panthera Leo (lion), the terms Solanum, Mangifera and Panthera represent the highe...
Which of the following circuit elements is used to 'block' DC in an electronic circuit?
Water gets cooled, when ice is immersed in it, this phenomenon is known as
Which material has the lowest refractive index?
Relevant for Exams:
