Question

if the product of any two rational number is 2, one of them is 1/7 find the other​

Answer 1

Question:-

if the product of any two rational number is 2, one of them is 1/7 find the other

Answer:-

• The second number is 14

Solution:-

• Product = 2
• First number = 1/7
• Second number = x

$\large{ \tt : \implies \: \: \: \: \: \frac{1}{7} \times x = 2}$

$\large{ \tt : \implies \: \: \: \: \: {} x = 2 \times 7}$

$\large{ \tt : \implies \: \: \: \: \: {}x = 14}$

• The second number is 14.

$\mathfrak{ \large{ \purple{ \underline{\pink{ verification}}}}}$

put 14 at the place of x.

$\large{ \tt : \implies \: \: \: \: \: {} \frac{1}{7} \times 14 = 2 }$

$\large{ \tt : \implies \: \: \: \: \: {}2 = 2}$

HENCE VERIFIED!!

Answer 2

$\huge\underline{\bf{Given}}$

• Product of two rationol number is 2.
• One rational number = 1/7

⠀

$\huge\underline{\bf{To\: find}}$

• The other rational number.

⠀

$\huge\underline{\bf{Solution}}$

• Let the another rational number be x.

★ According to the question

$\tt:\implies\: \: \: \: \: \: \: \: {\dfrac{1}{7} \times x = 2}$

⠀

$\tt:\implies\: \: \: \: \: \: \: \: {\dfrac{x}{7} = 2}$

⠀

$\tt:\implies\: \: \: \: \: \: \: \: {x = 2 \times 7}$

⠀

$\tt:\implies\: \: \: \: \: \: \: \: {x = 14}$

⠀

$\huge\underline{\bf{Verification}}$

⠀

$\tt\longmapsto{\dfrac{1}{\cancel{7}} \times \cancel{14} = 2}$

⠀

$\tt\longmapsto{2 = 2}$

⠀

$\tt\longmapsto{L.H.S = R.H.S}$

$\underline{\mathcal{\green{Verified}}}$

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