৮০৪১
Two dice are rolled together. What is the probability that the sum is at least 10?
উত্তর
1/6
৮০৪২
The population of a city grows from 175,000 to 262,500. What is the percentage growth in the city's population?
উত্তর
50%
৮০৪৩
A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 42, then how old is B?
উত্তর
16 years
৮০৪৫
The three angles of a triangle are x/3, x/3, and 4x/3 respectively. What is the sum of the two smallest angles?
উত্তর
60°
৮০৪৬
When the selling price is doubled, the profit becomes threefold. What is the percentage profit?
উত্তর
100%
৮০৪৮
Two pipes, A and B, can fill a tank in 37.5 minutes and 45 minutes. If both pipes are open, after how many minutes should pipe B be closed to fill the tank in half an hour?
উত্তর
9 minutes