Question

In a fraction denominator is 3 more than thrice the numerator. If numerator is increased by 3 and denominator is increased by 1, the fraction is reduced to half. Find the fraction. In an isosceles triangle the unequal side is two-third of the equal side. Find all the sides of the triangle if its perimeter is 80 cm. ​

Answer 1

the fraction is 2/9
the equal sides are 30
the unequal side is 20