১৫৩৮১
A boat takes 5 hours to travel 45 km upstream and 3 hours to travel the same distance
উত্তর
3 km/h
১৫৩৮৩
8 workers can complete a work in 15 days by working 9 hours per day. If 12 workers are assigned the same work, how many hours per day must they work to finish it in 10 days?
উত্তর
9 hours
১৫৩৮৪
Two numbers are in the ratio 4: 7. If 12 is added to each number, the ratio becomes 5: 8. What is the larger number?
উত্তর
84
১৫৩৮৯
In a simultaneous throw of a pair of dice, what is the probability that the sum is greater than 7 but less than 12?
উত্তর
7/18
১৫৩৯০
If the average of a natural number and its cube is 13 times the number, then the number is
উত্তর
5