A monkey climbs a 12-meters-high slippery pillar. In his first minute, he climbs 2 meters, and in the next minute, he slips one meter down. In this way, how much time will he take to reach the top of the pillar? What is the correct

A batsman makes a score of 80 runs in the 16th innings and increases average by 3. What is his average after 1...

After fillings the car's fuel tank, a driver drove from P to Q and then to R. He used 2/5th portion of the fue...

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

The average weight of A, B and C is 45 kg. If the average weight of A and B is 40 kg and that of B and C is 43...

কোনো পরীক্ষায় ২০% পরীক্ষার্থী গণিতে এবং ৩০% পরীক্ষার্থী ইংরেজিতে ফেল করলো। উভয় বিষয়ে ১৩% পরীক্ষার্থী ফেল কর...

a + b = 5, a-b = 3 হলে ab = কত?