5
Q:

x = y - (50/y), where x and y are both > 0 

If the value of y is doubled in the equation above, the value of x will

A) decrease B) stay the same
C) increase four fold D) increase to more than double

Answer:   D) increase to more than double



Explanation:

The best approach is to pick a number that satisfies the rules that x and y are greater than 0. So for example you could choose 25 for y.

The value of x before doubling is then 25 - 50/25 = 23

The value after doubling y will be 50 - 50/50 = 49, which is more than double.

Subject: Numbers
Exam Prep: GRE
Q:

Which smallest number must be subtracted from 400, so that the resulting number is completely divisible by 7?

A) 6 B) 1
C) 2 D) 4
 
Answer & Explanation Answer: B) 1

Explanation:
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Exam Prep: Bank Exams

0 645
Q:

The sum of three consecutive even integers is 84. Which is the least integer among them?

A) 28 B) 30
C) 32 D) 26
 
Answer & Explanation Answer: D) 26

Explanation:
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0 625
Q:

A number exceeds its 1/6 by 30. What is the number?

A) 120 B) 150
C) 36 D) 24
 
Answer & Explanation Answer: C) 36

Explanation:
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0 754
Q:

What is the digit in unit's place of the product 51 x 52 x 53 ...... 59?

A) 0 B) 4
C) 3 D) 6
 
Answer & Explanation Answer: A) 0

Explanation:
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0 699
Q:

What is the value of 232 ?

A) 64 B) 128
C) 512 D) 256
 
Answer & Explanation Answer: C) 512

Explanation:
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Exam Prep: Bank Exams

0 879
Q:

How many numbers less than 200 are multiples of both 5 and 6?

A) 21 B) 7
C) 9 D) 6
 
Answer & Explanation Answer: D) 6

Explanation:
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0 657
Q:

The average value of property of Agil, Mugilan and Anithais Rs. 130cr. The Property of Agil is 20cr greater than the property value of Mugilan and Anitha property value is 50cr greater than the Agil property value. The value ofproperty of Anitha is

A) 120 cr B) 170 cr
C) 100 cr D) 150 cr
 
Answer & Explanation Answer: B) 170 cr

Explanation:
Property value of Mugilan x
130 × 3 = x + x + 20 + x + 20 + 50
390 = 3x + 90
3x = 300
X = 100
Anitha = 100 + 20 + 50 = 170
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2 1196
Q:

Find the square root of 15625.

A) 125 B) 145
C) 150 D) 135
 
Answer & Explanation Answer: A) 125

Explanation:
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2 1618