Question

A B
6. The product of two numbers is 3.92. If one number is double of the other,
then the greater number is
(A) 5.6
(B) 4.2 (C) 1.4
(D) 2.8​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

(D) 2.8

Step-by-step explanation:

Let the smaller number be x and the larger number be 2x.

Therefore,

$x(2x) = 3.92\\2x^2 = 3.92\\x^2 = 1.96\\x = \sqrt{1.96}\\x = 1.4$

Since we need to find the greater number, we multiply 1.4 by 2, to get 2.8.