A student obtained 60, 75 and 85 marks respectively in 3 monthly examinations in physics and 95 marks in the final examination. The 3 monthly examinations are of equal weightage whereas the final examination is weighted twice as much as monthly examination. What is his average mark physics?

At a stationary shop, it costs Tk. 185 for 4 gel-pen, 8 ball -point pens and 1 marker pen and Tk. 315 for 7 ge...

The average of 10 numbers is 40.2. Later it is found that two numbers have been wrongly added. The first one i...

In a certain population group, 57% of the people have characteristics, X and 63% have characteristics Y. If ev...

M is older than N but younger than O. If m, n and o are the ages of M, N and O respectively, then which of the...

What is the smallest number of apples that can be distributed equally (without cutting any apple) among 6,10,1...

A merchant has 1000 kg of sugar, part of which he sells at 8% and the remaining at 18% profit. He gains 14% on...