If ,what is the value of

The average weight of 6 persons of a group is 75 kg.If a person weighting 50 kg leaves the group, what will be...

Two chairs have been sold ,each for Tk. 3,600. On one 20% profit has been earned and on the other 20% loss has...

f(x) = হলে, নিচের কোনটি সঠিক?

In the triangle ABC, angle B is equal to angle C and D is a point on BC.Which of the following is true ?

Monjur is 20 years older than Siad. However,5 years ago Monjur was twice as old as Siad.How old Monjur now ?

Mujahid can do a work in 8 days, while has colleagues Asad takes 12 days and Mithun takes 16 days to complete...