Question

Each one of a and b has some money if gave rs 3/- to b then b will have twice the money left with a half b gave Rs.10 to a then a have twice the money left with b. How many rupees a and b have?

Answer 1

Answer:

Let money with them also be A and B, so

2(A - 30) = B + 30

2A - 60 = B + 30

2A - B = 90.....(1)

Now, we have

2(B - 10) = A + 10

2B - 20 = A + 10

A - 2B = -30.....(2)

Multiplying (2) by 2 and subtracting from (1), we get

2A - B - 2A + 4B = 90 + 60

3B = 150

B = 50

So, A - 100 = -30

A = 70

Therefore, A and B has 70 and 50 money respectively.

Step-by-step explanation: