১৯৮৬১
A number is doubled and 9 is added. If the resultant is trebled, it beomes 75. What is that number?
উত্তর
8
১৯৮৬২
A trader buys some goods for Tk. 150. If the overhead expenses be 12% of cost price, then at what price should it be sold to earn 10%?
উত্তর
184.8
১৯৮৬৩
A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in:
উত্তর
6
১৯৮৬৪
A person deposited Tk. 400 for 2 years, Tk. 550 for 4 years and Tk. 1200 for 6 years. He received the total simple interest of Tk. 1020. The rate of interest per annum is
উত্তর
10
১৯৮৬৫
If each side of a rectangle is increased by 50%, its area will increase by
উত্তর
125
১৯৮৬৭
If the income of A is 10% more than that of B and the income of B is 20% less than that of C, then the income of A, B and C respectively are in the ratio
উত্তর
22 : 20 : 25
১৯৮৭০
A garrison of 500 men had provisions for 27 days. After 3 days a reinforcement of 300 men arrived. For how many more days will the remaining food last now?
উত্তর
15