Related Questions

Arif and Babu worked together to paint a house. Arif worked for 1 hour 45 minutes and Babu worked for 45 minutes. Babu's hourly rate is double the rate of Arif's. If the two toghther earned Tk 71.50, what is hourly rate of Arif in Taka?
A 20
B 22
C 22.50
D None of these
Arif starting from x goes to Y. t the same time Boby starts from Y and goes towards X. Once Arif reaches Y, he changes his direction and returns to X. Once Boby reaches X, he changes his direction and returns to Y. Throughout the journey, Arif travels at 54 kmph and Boby travels at 72 kmph. By the time they meet for the second tike, boby covers 36 km more than Arif. Find the distance (in km) between X and Y.
A 72
B 84
C 96
D None
The ratio of green marbles to red marbles in a box is 3:5. If there are 24 marbles in the box, how many additional green marbles will be required to make the ratio of green marbles to red marbles 1:1?
A 12
B 9
C 6
D None of the above
Bashar is twice as fast as Arif and Karim is three times as fast as Arif. If Bashar alone can complete a job in 12 days, how long will Bashar, Arif and Karim take to complete the same job together ?
A 3 days
B 4 days
C 6 days
D 8 days
If Kamal gives 20 marbles to Shuvo, then, both of them will have equal numbers of marbles in their possessions. If Shuvo gives 40 marbles to kamal then Kamal will have twice the number of marbles that Shuvo will retain. What is the number of marbles that Kamal has?
A 100
B 160
C 200
D None of these
A box contains 200 marbles, 25% of which are of black colour. Babu took some marbles from the box found that 30% of them are black. Of the remaining marbles, 10% were black marbles. How many marbles did Babu take?
A 120
B 125
C 150
D None of these
Arif bought 17 pens of three colors black , green and red. They cost Tk 5,Tk 10 and Tk 25 each respectively . The total amount that Arif paid was Th 205. If Arif bought twice as many green pens as red pens ,how many black pens did buy ?
A 4
B 5
C 7
D None
If Arif works alone he will take 20 more hours to complete a task than if he works with Babu to complete the task. If Babu work alone, he will take 5 more hours to complete the task than if he works with Arif to complete the task. What is the ratio of the time taken by Arif to than taken by Babu if each of them works alone to complete the task?
A 2 : 1
B 5 : 3
C 7 : 5
D None of these
Three boys agree to divide a bag of marbles in the following manner. The first boy takes one more than half the marbles. The second takes a third of the number remaining. The third boy finds that he is left with twice as many marbles as the second boy. The original number of marbles is-
A 38
B 36
C 32
D Cannot be determined
Three boys have marbles in the ratio of 19:5:3 . If the boy with the least number of marbles has 9 marbles, how many marbles does the boy with the greatest number have ?
A 57
B 15
C 76
D 38

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