Discussion
100 kg tomato juice containing 5% Total Solids (w/w) is concentrated to 25% Total Solids (w/w). The total amount of water removed from tomato juice in kg is
Answer: D
The water removed is 80 kg.
The solids are not evaporated, so they balance across the concentrator:
\[ \begin{aligned} \text{solids} &= 0.05 \times 100 = 5\ \text{kg} \\ \text{concentrate} &= \frac{5}{0.25} = 20\ \text{kg} \\ \text{water removed} &= 100 - 20 = 80\ \text{kg} \end{aligned} \]
The concentrate weighs only 20 kg, so 80 kg of the original 100 kg must have gone as water. Removing 65, 70 or 75 kg would leave 35, 30 or 25 kg holding 5 kg of solids, which is 14%, 17% or 20% solids, not the required 25%.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development