MBA Exam

How many three-digit positive integers have their hundreds, tens and units digits in ascending order?

1) 70
2) 77
3) 84
4) 504

Read Solution (Total 1)

ans:100-200--->123-129 total(7)
-->134-139(6)
--->145-149(5)
--->156-159(4)
-->167-169(3)
--->178-179(2)
-->189(1)
if we add 7+6+5+4+3+2+1=28
like this if we continue up to 999
then we get
28+21+15+10+6+3+1=84
so ans:84
6 years agoHelpfull: Yes(0) No(0)

MBA Other Question

The equation x2 â€“ ax + 1 = 0 has two real and distinct roots such that both the roots are greater than 1 and less than 3. From â€“10 to 10(both inclusive), how many integer values can be assigned to the parameter 'a'?

1) 2
2) 3
3) 4
4) 5
5) 1
A basket contains only three kinds of fruits â€“ guavas, mangoes and pears. What is the minimum number of fruits that should be picked from the basket to ensure that at least 5 guavas or at least 7 mangoes or at least 8 pears are picked?
plz explain...

1) 12
2) 20
3) 17
4) 18