I hope this help.Originally Posted by riteshn
1.) What is the product of positive integer factor of 15?
A) 1 B)3 C)5 D)15 E)225
15 can only be factorised as 5 X 3 and they are not positive integers. Is the question correct? Ans given in the book:SPOILER: 225
2) How many different factors are there for 242 excluding one and itself?
A)3 B)4 C)5 D)6 E)7
I am getting 2 ( 11 X 2 ) but the answer given isSPOILER: B
3.) Two different numbers whgen divided by same divisor leave remainders 4 and 3 respectively and when their sum is divised by the same divisor, remainder is 1. What is the divisor?
A) 4 B)5 C)6 D)7 E)8
How to do this? Answer is:SPOILER: C
4.) What is the least interger n such that 54/n^3 is positive.
A) -3 B)-1 C)1 D)2 E)3
I am getting D but the answer isSPOILER: A
Any ideas?
1.) What is the product of positive integer factor of 15?
A) 1 B)3 C)5 D)15 E)225
Ans is E)225. the positive factors are 3, 5, 15 & their product is 225.
2) How many different factors are there for 242 excluding one and itself?
A)3 B)4 C)5 D)6 E)7
Ans. is B : 2, 11, 22, 121
I am told that i talk in shorthand & then smudge it.
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