MBA Exam

Shrikant and Sachin start running simulataneosly from the diametrically opposite ends of a circular track towards each other at 15km/h and 25km/h respectively. After every 10 minutes their speed reduce to half of their current speeds. If the length of the circular track is 1500m, how many times will Shrikant and Sachin meet on the track?

1) 6
2) 9
3) 11
4) None of these

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MBA Other Question
what is the sum of the coefficients in the expansion of ( 1 - 3x + x^2 )^55 . sb explain pls..

1) 1
2) -1
3) 5^55
4) 2^55
 3. Leena cuts small cubes of 3 cubic cm each.She joined it to make a cuboid of length 10 cm,width 3cm, and depth 3 cm.How many more cubes does she need to make a perfect cube?

1) 910
2) 250
3) 750
4) 650