If the product of any two rational numbers is 3 and one of them is 1-4- then find the other number-

The correct option is B 12Let the two nbsp;rational numbers be nbsp;a nbsp;and b. Given, a = 1/4 nbsp;and nbsp;a × nbsp;b = 3 Now, 1/4× b = 3 ⇒ b = ...

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Standard VII

Mathematics

Division of Rational Numbers

If the produc...

Question

If the product of any two rational numbers is 3 and one of them is $\frac{1}{4}$ , then find the other number.

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Solution

The correct option is C 12
Let the two rational numbers be a and b.

Given, $a = \frac{1}{4}$ and $a \times b = 3$

Now, $\frac{1}{4} \times b = 3$

$\Rightarrow b = 3 \div \frac{1}{4}$

$\Rightarrow b = 3 \times 4 = 12$

So, the other rational number will be 12.

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If the product of any two rational numbers is 3 and one of them is 14, then find the other number.

The correct option is C 12Let the two rational numbers be a and b. Given, a=14 and a×b=3 Now, 14×b=3 ⇒b=3÷14 ⇒b=3×4=12 So, the other rational number will be 12.

If the product of any two rational numbers is 3 and one of them is $\frac{1}{4}$ , then find the other number.

The correct option is C 12
Let the two rational numbers be a and b.

Given, $a = \frac{1}{4}$ and $a \times b = 3$

Now, $\frac{1}{4} \times b = 3$

$\Rightarrow b = 3 \div \frac{1}{4}$

$\Rightarrow b = 3 \times 4 = 12$

So, the other rational number will be 12.