exam Exam Numerical Ability

1,2,10,....?
what is the next number in above series?

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may be 500
6 years agoHelpfull: Yes(0) No(2)

answer is 1010.
1^3+1=2
2^3+2=10
10^3+10=1010
6 years agoHelpfull: Yes(0) No(0)

exam Other Question

In in a city 12% of households earn less than 30000 rupees per year, 6% households earn more than 200000 rupees per year, 22% households earn more than rupees 100000 per year and 990 households earn between 30000 rupee and 100000 rupees per year. How many households earn between rupee 100000 and rupees 200000 per year? Two pipes A and B can fill up a half full tank in 1.2 hours. The tank was initially empty. Pipe B was kept open for half the time required by pipe A to fill the tank by itself. Then, pipe A was kept open for as much time as was required by pipe B to fill up 1/3 of the tank by itself. It was then found that the tank was 5/6 full. The least time in which any of die pipes can fill the tank fully is