৭১০৩
P, Q, and R are three consecutive even integers. If P + R = Q + 14, what is the value of P?
উত্তর
12
৭১০৪
Six bells commence tolling together and toll at intervals of 3, 5, 6, 9, 10, and 15 seconds respectively. In 45 minutes, how many times do they toll together?
উত্তর
31
৭১০৫
The radius of a wheel is 21 cm. How many revolutions will it make in travelling 1.32 kilometers?
উত্তর
1000
৭১০৬
A, B, and C started a business by investing Tk. 24,000, Tk. 32,000 and Tk. 40,000 respectively. If the total profit at the end of the year is Tk. 18,900, what is B's share of the profit?
উত্তর
TK. 6300
৭১০৭
A mixture contains two liquids 'A' and 'B' in the ratio 5 : 3. If 8 litres of the mixture is withdrawn and replaced with 8 litres of 'A', the ratio becomes 2 : 1. What was the initial quantity of 'B'?
উত্তর
27 litres
৭১০৮
A 320 metre long train crosses a platform twice its length in 48 seconds. What is the speed of the train in km/hr?
উত্তর
72 km/hr
৭১০৯
A and B together can complete a work in 10 days. A alone can complete it in 30 days. If B works only for half a day daily, then in how many days will A and B together complete the work?
উত্তর
15 days