Question

of her
uithe
9.
Mini sells her goods for Rs. 7700, gainin
price of the article
st price of the good
cost price of article
goods.
10. An article is sold at a loss of 6% for Rs. 705. Find the cost price of the
11. Praveen sells an article for Rs. 6000, ganing 20%. Find the cost price
12. An article is sold at a loss of 10% for Rs. 1800. Find the cost price of
13, Hema bought a house Rs. 64000 and fold it to Rs. 73,600. What was
tage?
at was her profit belon
14, Ramesh bought a machine in Rs 90,000 and he fold their machine in Re
much was had he at this machine in peicent?
st price when the lasrist
80 000. Find the refling price
15. Cori price of a car is Rs. 80,000. Find the refling price of car when
al when profit is
6. Selling price of a motorcycle is Rs. 36,000. Find the cost price whe
percent.
There are two
(a) Sim
(b) Con
(a) SIMPLE IN
Whe
year
(b) COMPOUN
If a borron
interest but add
principal during
is compound in
[Con
Here we sh
simple interest​

Answer 1

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

∘