Q. Passage-2
The history of renewable energy suggests there is a steep learning curve, meaning that, as more is produced, costs fall rapidly because of economies of scale and learning by doing. The firms’ green innovation is path-dependent: the more a firm does, the more it is likely to do in the future. The strongest evidence for this is the collapse in the price of solar energy, which became about 90% cheaper during the 2010s, repeatedly beating forecasts. Moving early and gradually gives economies more time to adjust, allowing them to reap the benefits of path-dependent green investment without much disruption. A late, more chaotic transition is costlier.
Q.5) A natural number N is such that it can be expressed as N = p + q + r, where p, q and r are distinct factors of N. How many numbers below 50 have this property?
Answer: C
Notes:
Exp) Option c is correct answer
Start by looking for the smallest number that has at least three distinct factors,
The first such number is 6.
Factors of 6: 1, 2, 3, 6
Now, 6 = 1 + 2 + 3
So 6 satisfies the condition.
If we multiply the equation by 2 it becomes
12 = 2+ 4 + 6
This means 12 also satisfies the criteria given in question.
Like wise all the multiples of 6, will satisfy the criteria in the question.
List of all the multiples of 6 below 50:
6, 12, 18, 24, 30, 36, 42, 48
There are 8 such numbers.
NO number which not a multiple of 6 satisfies this criteria.
So, the answer is 8.
