৫৭৮১
The lengths of two sides of a right-angled triangle are 13 cm and 5 cm respectively. The length of the third side is -
উত্তর
12
৫৭৮২
The present age of Habib and Shikha are in the ratio of 6 : 4. Five years ago their ages were in the ratio of 5 : 3. How old is Habib now?
উত্তর
30
৫৭৮৩
The average of three numbers is P. If two numbers of them are R and S. What is the 3rd number?
উত্তর
3R - P - R
৫৭৮৪
If 100 is divided into two parts in such a way that the sum of their reciprocals is 1/21, the difference between the two parts is -
উত্তর
40
৫৭৮৫
A bus travels a distance of 315 km at a uniform speed. If the speed of the bus were 90% of the original speed, it would have taken 2.5 hours more to cover the same distance. The original speed was-
উত্তর
14 Km/hour
৫৭৮৬
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%
৫৭৮৭
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
৫৭৮৮
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
৫৭৮৯
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
৫৭৯০
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