২৭৩৬১
A car covers four successive 7 km distance at speeds of 10 km/hr, 20 km/hr, 30 km/hr and 60 km/hr , respectively. Its average speed over this distance is:
উত্তর
20 km/hr
২৭৩৬২
A three of height 4 meter casts a show of length 6.5 meter what is the height of a house casting a show 26 meter long?
উত্তর
16 meter
২৭৩৬৬
The sum of three numbers is 98. If the ratio of the first to the second is 2: 3. And that of the second to the third is 5: 8 , then the second number is -
উত্তর
30
২৭৩৭০
O কেন্দ্রবিশিষ্ট বৃত্তের BC চাপের উপর ∠BAC হলো পরিধিস্থ কোণ। ∠BOC=110° হলে ∠BAC=?
উত্তর
55°