Question

Ashish is 175 cm tall. His sister Annu is 8% shorter than him. What is Annu's height?
An alloy consists of copper and zinc. It contains 60% copper and the rest is zinc. Find the
quantity of copper and zinc in 425 g of this alloy.
A tin contained 25 litres of oil. Due to leakage 2 litres of oil was lost. What nercanton
of oil is still there in the tin?​

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

∘

yo

Answer 2

Step-by-step explanation:

answer 1 height of Ashish is equal to 175 cm

height of her sister 8% shorter than him

=8%of175cm=14 cm

height of his sister is equal to 1 75 - 14 cm

his sisters height is 161 CM