Start learning 50% faster. Sign in now
Time taken by Amit to complete the whole work = 225/8 days Let total amount of work = 450 units (LCM of 225 and 18) So, efficiency of Amit = 450/(225/8) = 16 units per day Efficiency of Amit + Bhanu = 450/18 = 25 units per day Efficiency of Bhanu = 25 – 16 = 9 units per day Amount of work done by Bhanu in 5 days 9 × 5 = 45 units Amount of work done by Amit and Bhanu together in 6 days = 6 × 25 = 150 units Amount of work done by Bhanu and Chaman together in 15 days = 450 – 45 – 150 = 255 units So, efficiency of Bhanu and Chaman together = 255/15 = 17 units per day Efficiency of Chaman = 17 – 9 = 8 units per day For option (a): Amount of work done by Amit in 12 days = 12 × 16 = 192 units Amount of work done by Bhanu in 16 days = 16 × 9 = 144 days Amount of work done by Chaman in 14(3/4) days = 59/4 × 8 = 118 units Total work done by Amit, Bhanu and Chaman together = 192 + 144 + 118 = 454 units > 450 units So, option (a) cannot be the answer. For option (b): Efficiency of Chaman = 2.5 × 8 = 20 units per day Time taken by Chaman to complete the whole work = 450/20 = 22.5 days So, option (b) cannot be the answer. For option (c): Desired time = (0.64 × 450)/(16 + 8) = 12 days
Which part of the body is affected by tuberculosis (TB)?
What is the boiling point of water at sea level?
Consider the following statements
Statement I: Clay layers are poor aquifers.
Statement II: The inter-particle space of clay minerals is t...
Which one of the following physical quantities is the same for molecules of all gases at a given temperature?
Which of the following solutions will not change the colour of blue litmus paper to red?
1. Acid solution
2. Base solution
3. Com...
Kindly Study the following questions carefully and choose the right answer.
Organisms using simple food material acquired from inorganic source...
What is the primary reason for the blue color of the sky?
Which gas is commonly used in electric bulbs to prevent oxidation?
A bomb at rest explodes into a large number of tiny fragments. The total momentum of all the fragments –