If (x+4)2=9 and (y+3)2=25, then the minimum value of y/x is----

A -1
B -2
C -8
D -2/7

Correct Answer: -2

x + 42 = 9 ⇒x + 4 = ±3 ∴ x = - 1, - 7 এবং y + 32 = 25 ⇒y + 3 = ±5 ∴ y = 2 , 8 yx = 2 - 1 = - 2 এবং yx = 2 - 7 = - 27 আবার yx = - 8 - 1 = 8 এবং yx = - 8 - 7 = 87 ∴yx এর ক্ষুদ্রতম মান = - 2
Bissoy MCQ
#গণিত #সরল সমীকরণ (Simple/linear equation) #United Commercial Bank Ltd (UCB) #United Commercial Bank Ltd - Probationary Officer - 17.02.2017

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