Please help me solve these q's

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Q1) If (x + 2)2 = 9 and (y + 3)2 = 25, then the maximum value of x / y is

1) 1 / 2
2) 5 / 2
3) 5 / 8
4) 1 / 8
5) None
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Q2)Given A = 265 and B = (264+263+262+...+20)

1) B is 264 larger than A
2) A and B are equal
3) B is larger than A by 1
4) A is larger than B by 1
5) None
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Q3)The largest number amongst the following that will perfectly divide 101100 - 1 is

1) 100
2) 10000
3) 100100
4) 100000
5) None
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Q4)A piece of equipment cost a certain factory Rs. 600,000. If it depreciates in value, 15% the first year, 13.5% the next year, 12% the third year, and so on, what will be its value at the end of 10 years, all percentages applying to the original cost?

1) 2,00,000
2) 1,05,000
3) 4,05,000
4) 6,50,000
5) None
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Q5) What is the total number of different divisors including 1 and the number that can divide the number 6400?

1) 24
2) 27
3) 54
4) 68
5) None
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Guys, I am sorry but I do not know the correct answers