১২০৪১
The output of a glass factory was increased by 12% to keep up with the rising demand. Later, this new output was increased by another 25%, By approximately what percentage would the output now have to be decresed in order to restore to the original output?
উত্তর
28.6%
১২০৪২
A forester wants to plant 66 coconut trees, 88 date trees and 110 plum trees in equal sized rows (in terms of number of tress). Also he wants to make distinct rows of trees (i.e only one type of trees in one row). What is the minimum number of rows required?
উত্তর
12
১২০৪৩
I we double a certain number and add 30 to it, we get the same value as four times that number. What is the value of thrice the number?
উত্তর
45
১২০৪৪
Fahim's collection contains US, Bangladeshi and British stamps. If the ration of US to Bangladeshi stamps is 5 : 2 and the ration of Bangladeshi of British stamps is 5 : 1, what is the ration of US to British stamps?
উত্তর
25 : 2
১২০৪৫
Six years ago, Anika was P times as old as Bulbul was. If Anika is now 17 years old, how old is Bulbul now in terms of P?
উত্তর
(11/P) + 6
১২০৪৬
A certain animal in the zoo has consumed 39 pounds of food in six days. If it continues to eat at the same rate, in how many more days will its total consumption be 91 pounds?
উত্তর
8
১২০৪৭
If n is even, which of ক) n + 3 খ) 3(n + 1) গ) 2(n + 3) + 3 ঘ) n2 - 1 ঙ) 2(n + 3) the following cannot be odd?
উত্তর
2(n + 3)
১২০৪৮
What is the parameter of a rectangle that is 24 meter wide and has the same area as another rectangle that is 64 meter long and 48 meter wide?
উত্তর
304 meter
১২০৫০
If set A = {1, 2} and B = {3, 4}, then A × B (Cartesian product of set A and B) is
উত্তর
{(1, 3), (2, 4), (1, 4), (2, 3)}