Subject :IMO Class : Class 8
Ans 1:
Class : Class 8
((x^-1)+(y^-1))^-1=((1/x)+(1/y))^-1
=((x+y)/xy)^-1=xy/(x+y)
Ans 2:
Class : Class 8
a) x+y
The value of
is ____.
m from it. How many metres of cloth were left ?
of the eggs Priyanka bought were chicken eggs. 
of them were century eggs and the rest were quail eggs. If Priyanka spent a total amount of Rs 6.50 on the chicken and century eggs, how much did she spend on the quail eggs ?
kilogram of rice every day.
Which type of rice is a better bargain ?