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Aptitude Day 82


Ratio and Proportion:

Answer of Day 81:   10, 15 and 35.
  
1. Salaries of A and B are in the ratio 3:4. If the salary of each is increased by 1000, the ratio becomes 13:20. What’s the B’s present salary?
Solution:
                  Let their salaries be 3x and 4x.
                  3x+1000/ 4x+1000 = 13/20
                  60x+20000 = 52x+13000
                  8x = 7000
                  4x = 3500
                  B’s present salary is 4x+1000 = 4500.

2. If 6000 be divided among A, B and C in such a way that B gets 1/2 of A and C gets 1/3 of B, then the share of A is:

Solution:
                Their ratio will be A: 1/2 A: 1/3B
                This becomes, A: 1/2A: 1/6A
                6:3:1.
               Total parts = 10.

               The share of A is 6(6000/10) = 3600.


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