২৭৩৫১
A man spends 75% of his income. His income is increased by 20% and he increased his expenses by 10%. His saving are increased by
উত্তর
50%
২৭৩৫২
A boat can travel with a speed of 13 km /hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.
উত্তর
4 hours
২৭৩৫৩
A rectangular block 6 cm by 12 cm 15 cm is cut up into an exact number of equal cubes. Find the least possible number of cubes.
উত্তর
40
২৭৩৫৬
A student multiplied a number by 3/5 instead of 5/3 , What is the percentage error in the calculation?
উত্তর
64%
২৭৩৬০
The difference between the length and breadth of a rectangle is 23 m. If its perimeter is 206 m , then its area is:
উত্তর
2520 m2