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Question

X and Y are integers which lie between [-5,15] and [-5,10] respectively Which of the following represents the least value?


Your Answer
A
Y3X
Your Answer
B
X2Y2
Your Answer
C
XY/2
Correct Answer
D
(X2+Y3)(-X)
Your Answer
E
- X  

Solution

The correct option is D (X2+Y3)(-X)

Find the least value of each to find the least value amongst the four

a) Y3X = 1000 x (-5) = -5000

b) X2Y2= 0 x 0 = 0

c) XY/2= 15(-5)/2= -75/2= -37.5

d) (X2+Y3)(-X)= (225+1000)(-5)= -6125

e) –X = -15

Answer = d

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