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The position of no. 7 ( units,tens,hundreds) can be chosen in 3C1 ways
the other 2 places can filled by all the 10 digits ( 0 to 9)
Total no.s = 3C1*10*10 = 300
The argument assumes that there is no other way to climb the pouches.
Option E is misleading - it is analogous to say Marsupial lions had tails, whiskers or nails because lions needed those for their development. It may not be true though.
IMO B Let’s say every year 100 people were migrating to small towns from Latvia. As per the survey, in 1975 the people migrated were less, say 80. But the number is considered wrong because lot of people from abroad who came to Latvia were counted as migrants. The people counted were the people comi...
The distance between the centres of two circles will determine whether circles intersect or not. if distance > R + 2 -- non intersecting circles = R+2-- intersecting at a point < R+2-- circles intersecting at two points = 0 --- concentric circles stat1: distance = R+1 => circles intersect stat2: R=3...
If you don't want to choose numbers then the best method is to make denominators of the fractions same and compare the numerators. The fractions reduce down to following comparisons Option1: Is 2x(sqrt(x+y)) > (x+y)(sqrt(x+y)) => is 2x>(x+y) True only when x>y - can't say Option2: Is (sqrt(x) + sqrt...
Close call between D and E in the bold face question.
Rashmi, in your question, option C explains the paradox.
Option E is wrong because it doesn't explain why the communicable disease was absent in America.
(B) Host insects lack any effective defenses against the form of predation practiced by parasitic wasps. We don't know that (C) Parasitic wasps learn from experience how many eggs to lay into the eggs of different host species. Not mentioned in the passage may be they have some other mechanism to de...