If a person earned Tk. 25 , Taka 30, and Taka 35 in the first three weeks of the month , how much he must earn in the fourth week in order to make average weekly earnings to Taka 35 in the month ?

30

50

40

60



প্রশ্নের বর্ণনাঃ শীঘ্রই আসছে...