SATHEE: Quantitative Aptitude Ques 1373

Quantitative Aptitude Ques 1373

Question: An alloy contains copper, zinc and nickel in the ratio of 5: 3: 2. The quantity of nickel in kilogram that must be added to 100 kg of this alloy to have the new ratio 5 : 3 : 3 is

Options:

A) 8 kg

B) 10 kg

C) 12kg

D) 15 kg

Show Answer

Answer:

Correct Answer: B

Solution:

Let quantity of copper be $ 5x. $ Quantity of zinc be $ 3x $ Quantity of nickle be $ 2x $ Now, $ 5x+3x+2x=100kg $

$ \therefore $ Quantity of nickle $ =10\times 2=20kg $ Let x kg of nickel be mixed. Then, $ \frac{20+x}{100+x}=\frac{3}{11} $

$ \Rightarrow $ $ 220+11x=300+3x $

$ \Rightarrow $ $ 11x-3x=300-220 $

$ \Rightarrow $ $ 8x=80 $

$ \therefore $ $ x=10kg $

BETA

Privacy Policy

Powered by Prutor@IITK

sathee@iitk.ac.in

Media coverage of SATHEE

Play Store

App Store

The Ministry of Education has launched the SATHEE initiative in association with IIT Kanpur to provide free guidance for competitive exams. SATHEE offers a range of resources, including reference video lectures, mock tests, and other resources to support your preparation. Please note that participation in the SATHEE program does not guarantee clearing any exam or admission to any institute.

Quantitative Aptitude Ques 1373

Question: An alloy contains copper, zinc and nickel in the ratio of 5: 3: 2. The quantity of nickel in kilogram that must be added to 100 kg of this alloy to have the new ratio 5 : 3 : 3 is

Options:

Answer:

Solution:

Bank Preparation

Bank Courses

NCERT Books

Important Resources

Forum