In what ratio must the 3 varieties of wheat costing Rs 42 Rs 54 and Rs 65 respectively be mixed so t...........

Quantitative Aptitude ( CCS) Mixture and Alligation

In what ratio must the 3 varieties of wheat costing Rs 42, Rs 54 and Rs 65 respectively be mixed so that the resulting mixture is sold for Rs 63.8 at a profit of 10%?

7 : 20 : 7

4 : 8 : 13

5 : 5 : 21

7 : 7 : 20

छोटे Courses बड़े Results

Master Mixture and Alligation

Prepare through Micro-courses

Try Now

Explanation:

SP = 63.8, Profit=10%, so CP = (100/110)*63.8 = 58
Now 58 is greater than 42 and 54 and less than 65
So
42 65
. 58
7 16
And
54 65
. 58
7 4
So 1 part of 1st wheat A, 1 part of 2nd wheat B and 2 parts of 3rd wheat C gives
A : C = 7 : 16, and B : C = 7 : 4
So A : B : C = 7 : 7 : (16+4)
*we have taken 2 parts of C so it is added – when there are 3 varieties to be mixed
it is not done like simple calculation of A : C and B : C