১৩৫৭১
Salam earns Tk. 8.50 per hour on days other than Friday and twice than the rate on Friday. Last week he worked a total of 50 hours including 8 hours on Friday. What is his earning for the week?
উত্তর
Tk. 493
১৩৫৭২
A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long?
উত্তর
89 sec
১৩৫৭৩
If 4 x + y = 1 and 4 x - y = 4, then the values of x and y respectively are-
উত্তর
1/2 and - 1/2
১৩৫৭৫
The ages of Sabiha and Suriya are in the ratio of 7 : 3 respectively. After 6 years, the ratio of their ages will be 5 : 3. What is the difference in their ages?
উত্তর
8 years
১৩৫৭৬
A scored 30% marks and failed by 15 marks. B scored 40% marks and obtained 35 marks more than those required to pass. The pass percentage is-
উত্তর
33%
১৩৫৭৭
A, B and C are partners in a business. Their shares are in the proposition of (1/3) : (1/4) : (1/5). A withdraws half of his capital after 15 months and after another 15 months, a profit of Tk. 4340 is divided. The share of C is -
উত্তর
Tk. 1240
১৩৫৭৮
Two coins are tossed. What is the probability of getting at most one head?
উত্তর
3/4
১৩৫৭৯
A train with a length of 150m long, takes 30 seconds to cross a 500m long bridge. How much time will the train take to cross a 370m long platform?
উত্তর
24 sec
১৩৫৮০
A boat covers 143 km upstream in 13 hours and the same distance downstream in 11 hours. What is the speed (in km/hr) of the boat in still (without stream) water?
উত্তর
12 km/hr