৩৫৫৪
যখন n এর মান শূন্য অথবা যে কোন পূর্ণ সংখ্যা এবং sinθ=-1। তখন θ এর মান কত?
উত্তর
(4n-1)π2
৩৫৫৭
In a room all except 18 of the people are above 50 years of age. If 15 of the people din the room are under 50 years of age. How many people are in the room?
উত্তর
can't be determined
৩৫৫৮
Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute.At this rate how many bottles could 10 such machines produce in 4 minutes?
উত্তর
1800
৩৫৬০
Six men can complete a work in 5 days if they work for 8 hours per day. How many days 4 men will take to do the same work only 5 hours per day?
উত্তর
12