Three types of tea the a,b,c costs Rs. 95/kg,100/kg and70/kg
respectively.How many kgs of each should be blended to produce
100 kg of mixture worth Rs.90/kg, given that the raveled s of
band c are equal...

Answer Posted / jjb

a+b+c = 100
b = c
a.95 + b.100 + c.70 = (a+b+c).90

in this system of 3 linear equations with 3 unknown values, replace c by b , since they are equal:

a = 100 -2.b
a.95 + b.170 = 9000

then:

9500 + b.(170 - 190) = 9000

or:

500 = 20.b

The correct answer is b = c = 25 kg, a = 50 kg.

Is This Answer Correct ?    140 Yes 9 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the strategy for automation test plan?

597


What is binary portability testing?

602


What are the five common solutions for software developments problems?

707


Give me an example of the best and worst experiences you've had with QA.

3595


What has not worked well in your previous QA experience and what would you change?

1662






What is branch testing and what is boundary testing?

841


What is automated software quality (asq)?

658


Can anyone please tell me how to export the requirements from QC 9.2 to excel file.

2053


List out various tools required to support testing during development of the application?

576


What is the difference between the test plan and test strategy

577


What are the contents of test plans and test cases?

594


Explain what are test driver and test stub and why it is required?

583


What is the difference between compatibility testing and cross browser testing?

648


Will automated testing tools make testing easier?

563


What are the solutions for the software development problem?

550