MBA Exam

A bus has a total of 7 tyres, 6 running tyres and 1 spare.iT HAS RUN A TOTAL OF 42000 miles with each tire running the same number of miles.If replacing one tire by another is called a "change",what is the minimum number of changes required in covering 42,000 miles?

1) 12
2) 7
3) 6
4) 5

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MBA Other Question

a grandfather brought a certain no. of oranges to give them to his 3 grandsons.their grandmother placed the oranges in a big basket.after sometime the first grandson came and divided the oranges into 3 equal parts and found 1 extra.he hide 1 of these parts and the extra orange in a safe place and left.then the second grandson came and did the same that is divided the oranges into 3 equal parts and found 1 extra.he hide 1 of these parts and the extra orange in a safe place and left.then the third grandson came and did the same -divided the oranges into 3 equal parts and found 1 extra.he hide 1 of these parts and the extra orange in a safe place and left.next morning their grandmother took the remaining oranges and divided them into 3 equal parts and found that each part had Z oranges and as in the previous cases there was an extra orange.she kept that extra orange for herself and gave 1 part(that is Z oranges) each to her 3 grandsons.find the minimum possible value of Z ?pl. provide sol.

1) 1
2) 3
3) 7
4) 16
How many 4-digit numbers are there whose decimal notation contains not more than two distinct digits?

1) 672
2) 576
3) 360
4) 448