1.

The prices of two articles are as 3:4. Ifthe price of the first article is increasedby 10% and that of the second by * 4,original ratio remains the same. Theoriginal price of the second article is..!!.plz explain ans frnds​

Answer»

Answer:

In △ABC AB=AC

⇒∠B=∠C (Angles OPPOSITE to equal sides are equal)

Now using angle sum property

∠A+∠B+∠C=180

∘

⇒80

∘

+∠C+∠C=180

∘

⇒2∠C=180

∘

−80

∘

⇒∠C=

2

100

∘

=50

∘

now ∠C+∠x=180

∘

(Angles MADE on straight LINE (AC) are supplementary)

⇒50

∘

+∠x=180

∘

⇒∠x=180

∘

−50

∘

=130

∘


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