MBA Exam

how many triangular no's less then 1000 have the property that they are the difference of squares of two consecutive natural no's ?no OA ! plz share approach

1) 20
2) 21
3) 22
4) 23

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MBA Other Question
A, B, C, D, …… J invested money in the ratio 2 : 4 : 6 : …… : 20. The duration for which they invested the money is in the ratio 10 : 9 : 8 :……… : 1. Who obtained the maximum profit at the end of the year?

1) C
2) E
3) F
4) More than one
 The number of values of ‘x’ less than 30 for which 50! – x! ends in 6 zeroes is:

1) 6
2) 5
3) 4
4) 3
5) 0