Multiple Choice Questions

In what proportion must wheat at Rs20 40 per kg be mixed with wheat at Rs25 50 per kg so that the mi...........

Quantitative Aptitude (CHSL) Mixture and Alligation

In what proportion must wheat at Rs20.40 per kg be mixed with wheat at Rs25.50 per kg, so that the mixture is worth Rs23.80 per

kg?

This questions was previously asked in

SSC CHSL 31st May 2022 Shift-3

1 : 3

2 : 1

2 : 3

1 : 2

To find the correct proportion to mix the two types of wheat, we can use the method of alligation:

- The average price of the mixture should be Rs23.80 per kg.

- We have two types of wheat priced at Rs20.40 per kg and Rs25.50 per kg.

Now, solve using the alligation method:

- The difference between Rs25.50 and Rs23.80 is Rs1.70.

- The difference between Rs23.80 and Rs20.40 is Rs3.40.

The ratio is the difference of the costs of each type of wheat from the average, which gives us the proportion:

- Ratio = Rs1.70 : Rs3.40

- Simplify: 1 : 2

- Option 4: 1 : 2

This is the correct option.

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