১৮০৭২
A number is increased by 20% and then decreased by 20%. What is hte net percentage change??
উত্তর
4% decrease
১৮০৭৪
Find the largest angle of a triangle whose angles are in the ratio 1 : 2 : 3.
উত্তর
90°
১৮০৭৫
The 5th term of an arthmetic progresson is 18 and the 15th term is 48. find the first term. The 5 th term of an arthmetic progresson is 18 and the 15 th term is 48. find the first term.
উত্তর
6
১৮০৭৬
A coin is tossed and a die is rolled simultaneously. What is the probability of getting a Head and an even number?
উত্তর
1/4
১৮০৭৭
The supplement of an acute angle is twice the angle itsell. find the angle.
উত্তর
60°
১৮০৭৮
12 workers can complete a work in 20 days. if 3 more workers join, by what percentage will the completion time decrease?
উত্তর
20%
১৮০৭৯
A watch dealer bought a watch for Tk. 1600. At what price should he sell it to make a 17.5% profit?
উত্তর
Tk. 1880
১৮০৮০
If x = y2, y = x2 and z = xk, find k. If x = y 2 , y = x 2 and z = x k , find k.
উত্তর
1/6