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Questions

In order to obtain an income of Tk. 650 from 10% stock at Tk. 96, one must make an investment of :

Running at the same constant rate, 6 identical machines can produce a totoal of 270 bottles per minute. At this rat, how many bottles could 10 such machines produce in 4 minutes?

If 2x - y = 4 then 6x - 3y = ?

(110)110 18 -(110) 20 =?

If (a -b) =3 and a2+b2=29, find the value of ab.

which is the shortest route from B to C .

The most economical way of going form city A to City B , in terms of toll and distance is to us the

(1/10) 18 - (1/10)20=?

Mr. Ali decided to walk down the escalator of a tube station. He found that if he walks down 26 steps, he requires 30 seconds to reach the bottom. However, if he steps down 34 stairs he would only require 18 seconds to get to the bottom. If the time is measured from the moment the top step begins to descend to the time he steps off the last step at the bottom, find out the height of the stair way in steps?