MBA Exam

Using one or more of the digits 1, 2, 3, 4, 5, 6 and 7, how many 7-digit numbers can be formed which are divisible by 7?(1) (2) (3) (4) (5)

1) 7^5 + 7^4 + 7^3 + 7^2 + 7
2) 4×7^5
3) 4×7^6
4) 7^6
5) 6×7^6

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MBA Other Question
Prince works in a company where his remuneration for the nth day is Rs. (n2 + 2), where ‘n’ is the number of days for which he has worked in the company. He does not spend any money on the first three days of his job. However, from the 4th day onwards he starts spending Rs. (n + 14) on the nth day. On which day would he save more than Rs.100 for the first time?

1) 10th
2) 11th
3) 12th
4) 13th
 there are two pockets, each containing 3 coins of diff denominations which are in AP and total value of coins in each pocket is Rs 21. the common diff of the first set of coins is greater than that of second set by 1,and the product of the first set is the product of the second set as 8 to 9. find the value of the coin of largest denominations,among six coins??

1) 9
2) 10
3) 11
4) 8