-------- How many factors does 36^2 have? A) 2 B) 8 C) 24 D) 25 E) 26 The ans is : D ---------- But I found B becouse 2*2*2*2*3*3*3*3 Can any one pls explain me why D is correct. Thanks Sarwan 36^2 = 2^4*3^4 so factors = (4+1)(4+1) [Power of each prime factor + 1] =25 Rule -> If n = a^x * b^y * c^z...

The difference is between the word "presents" and "is". If choice B had said that the secondboldface "is" an assumption, then choice B would definitely be wrong. Because choice B says that the second boldface "presents" an assumption, choice B is perfect. (No...

We can answer this question just by noticing that the second bold statement is a conclusion (because it follows "therefore"). Only choice C correctly states that the second bold statement is a conclusion ("a position"). Therefore, choice C must be correct. As an aside, a stateme...

IMO C Greatest number of household to have all three = 55 To calculate Lowest: Total houses = 100 Suppose house number 1 to 75 have DVD players and house number 21 to 100 have Cell Phones Now, house no. 1 to 20 have only DVDs and house no. 76 to 100 have only cell phones. so total 45 houses have onl...

Re:

1)
30^n > 1,000
=> n >=3 (since 30^1=30, 30^2=900, 30^3=27000 > 1000)

So 30^n will always have minimum 3 zeros
=> Hundreds digit is 0.
Sufficient.


2)
Same as above since n=3k
30^3k = (27000) ^k.
So minimum 3 zeros
=> Hundreds digit is 0.
Sufficient.

Both sound good. I usually ignore the 'of .... ' part,

a reasonably clear picture has emerged 'of ...'

a reasonably clear picture 'of ....' has emerged

Paralelism is only correct in A :

'a critique of all chemistry' ..... 'a vision of a new chemistry'....

I feel when we talk about music we can only use the word 'fusion' .