Question

product of two successive multiples
of 10 is 1200. Then find these
multiples:10 के 2 लगातार गुणजों का
गुणनफल 1200 है, तो गुणजों का मूल्य पता करें.
O 20, 30
O 48, 25
60, 20
O 30, 40​

Answer 1

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Answer 2

Answer:

D) 30 , 40

Step-by-step explanation:

Let 2 multiple be x and x+ 10

x ( x+10 ) = 1200

x² + 10x = 1200

x² + 10x - 1200 = 0

x² + 40x - 30x -1200

x ( x + 40) -30 ( x + 40 )

( x - 30) ( x + 40 )

x = 30 I x = -40

x can't be negetive

Therefore x = 30

X = 30

x + 10 = 30 + 10

= 40

Therefore answer is 30,40

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