Question

Find the number which when increased by 25% becomes 20.

Answer 1

Answer:

Let Salary of A be x

Let Salary of B be y.

Net effect after changes in A's salary

25-20-20×25 by 100 = 0

Net effect after changes in B's salary

20-25-25×20 by 100 = 20-30 = -10

(I.e) B's salary 90% of y

ATQ,

x = 90 by 100 y

= x by y

= 9 by 10

Required ratio = 10:9

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