MBA Exam

A, B, C and D have an average of र200 among themselves. If A's money increases by 200% and B's by 100%, then the average amount with all the four increases by र100. If the percentage increases of the two are swapped, the average amount with A and B would be र400.Find the amount that A originally had

1) 50
2) 100
3) 200
4) 150

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MBA Other Question
A staircase has 10 steps. You walk up taking 1 or 2 steps at a time. In how many ways can you go up if 5th step is boken??post ur approach

1) 30
2) 25
3) 20
4) 35
 Find the value of1+a^2-b^2/(a-b) + a^3-b^3/(a-b) + ..... +a^9999-b^9999/(a-b)a and b are the roots of the equation x^2=1

1) 1
2) 9999
3) 5000
4) 4999