১১৯০২
A man takes twice as long to row a distance against the stream as to row the same distance in favor of the stream. The ratio of the speed of the boat (in still water) and the stream is:
উত্তর
3 : 1
১১৯০৩
A, B and C investment in a partnership in the ratio of 5 : 6 : 8. The ratio of their profit is 5 : 3 : 12. Find the ratio of time for their investment?
উত্তর
2 : 1 : 3
১১৯০৫
A tap can fill a tank in 6 hours. After half the tank is filled three more similar taps are opened. What is the total time taken to fill the tank completely?
উত্তর
3 hrs 45 min
১১৯০৬
For any two numbers m, n ; (m + n ) : (m - n) : mn = 7 :1 : 60. Find the value of 1/m : 1/n =?
উত্তর
3 : 4
১১৯০৯
A man can walk uphill at the rate of 2.5km/hr and downhill at the rate of 3.25km/hr. If the total time required walking a certain distance up the hill and return to the starting position is 4 hr 36 min, what is the distance he walked up the hill?
উত্তর
6.5 km
১১৯১০
A, B and C enter into a partnership with a certain capital in which A's contribus10,000. If out of a total profit of Tk. 1000, A gets Tk. 500, B gets Tk. 300 then C's capital is
উত্তর
Tk. 4,000