Mixture and Alligation

Quantitative Aptitude (MTS)

Title

45:30

Video Progress

8 of 24 completed

Notes Progress

5 of 15 completed

MCQs Progress

38 of 100 completed

Subjective Progress

8 of 20 completed

Continue to Next Topic

Indian Economy - Understanding the basics of Indian economic system

Next Topic

Download Solution PDF

An alloy of gold and copper weights 50 g. It contains 80% gold. How much gold should be added to the alloy so that percentage of gold is increased to 90?

50gm

60gm

45gm

35gm

Explanation:

Gold in alloy =50*80% =40gm
Copper in alloy =50*20%=10gm
Now,
(40+x)/10=90/10
X=50gm

Hence, option 1 is the correct answer.

By: Amit Kumar

Profile ResourcesReport error

Trial Period Ended