MBApyq

Mixture concentration adjustment

CMAT 2018 · Quantitative Techniques & Data Interpretation · Medium · Mixtures and Alligations

All CMAT 2018 questionsMore Mixtures and Alligations questionsAll CMAT QTDI

A mixture of petrol and kerosene weighing 5 kg contains 5% kerosene. How much more kerosene (approx.) must be added into it to make it 10%?

  1. A.

    250 gm

  2. B.

    275 gm

  3. C.

    300 gm

  4. D.

    425 gm

Answer

B

Explanation

Initial kerosene in 5000 g mixture = 5%×5000=2505\% \times 5000 = 250 g. Let xx g of kerosene be added. 250+x5000+x=10100\frac{250 + x}{5000 + x} = \frac{10}{100} 2500+10x=5000+x  ⟹  9x=2500  ⟹  x≈277.77 g≈275 g.2500 + 10x = 5000 + x \implies 9x = 2500 \implies x \approx 277.77 \text{ g} \approx 275 \text{ g.}

Related Mixtures and Alligations questions

Practise this under exam conditions

Sign in to solve it with a live timer, the on-screen CAT calculator, and streak and accuracy tracking across every question you attempt.

Solve in the workspace