Arif is now 5 times as old as Babu, but 7 years now he will be 3 times as old as babu. How old is Arif now?

A 7
B 8
C 9
D 11

Correct Answer: 7

মনে করি, Babu - র বর্তমান বয়স x বছর Arif - এর বর্তমান বয়স 5x বছর প্রশ্নমতে, 5x + 7 = 3(x + 7) ⇒5x +   =  3x  + 21⇒2x  = 14⇒x = 7 Arif - এর বর্তমান বয়স (5×7)  = 35 বছর
Bissoy MCQ
#গণিত #Dhaka Bank Ltd #Dhaka Bank Ltd - Trainee Officer - 24.06.2016

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
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
Arif in now 5 times as old as Babu, but 7 years from now he will be 3 times as old as Babu. How old is Arif now?
A 7
B 8
C 9
D 11
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
Arif is 4 times as old as Bobby,in 6 years, Bobby will be twice as old as Sara. Four years from now Arif will be 36 years old,how old will Sara be in 5 years?
A None
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
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 were 32 years older, he would be three times as old as he is now. How old is Arif?
A 16
B 32
C 8
D 12
"Arif is taller Babu. Kamal is taller than Dipu. Arif is taller than Kamal. " which of the following must be true?
A Babu is taller than Kamal
B Kamal is taller than babu
C Arif is taller than Dipu
D Dipu is taller than b babu
Ali, Babu, Chinmoy, Drabir and Ebadur are five athletes taking part in a race. Ali finishes ahead of Babu, Chinmoy finishes behind Drabir, Ali comes in behind Ebadur, Babu is ahead of Drabir. Who wins in the race?
A Ali
B Ebadur
C Babu
D Chinmoy

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