MBA Exam

two numbers have their hcf equal to lcm.which of the following must be true?

1) two numbers are prime
2) two numbers are coprime
3) two numbers are equal
4) none of these

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MBA Other Question

There are 777 houses in a society. The houses were numbered in the ascending order of various number systems stating from binary and exhausting each system and moving into next. The number plate has place for only 3 digits. So what will be the number of number system between 33rd and 777th houses?

1) 2
2) 3
3) 4
4) 5
The lengths of the hour hand and the minute hand of a clock are 3.5 cm and 5.25 cm respectively.If the hour hand covers an area of 7.7 cm2, then find the approximate area (in cm2) covered by the minute hand during the same time period.(a) 17 (b) 158 (c) 260 (d) 208

1) a
2) b
3) c
4) d