ARITHMETIC 12 boys and 18 girls can complete a work i | Data Interpertation & airthmatic

ARITHMETIC



12 boys and 18 girls can complete a work in 6 days. 12 girls can complete the work in 18 days. 12 boys and 18 girls started the work 4 days after 4 boys left. In how many days, the remaining people will complete the work?

A) 12/5
B) 36/5
C) 48/5
D) 24/5
E) None of these

Express A leaves Chennai at 5 a.m. and reaches Mumbai at 9 a.m. another train Express B leaves Mumbai at 7 a.m. and reaches Chennai at 10:30 a.m. At what time they cross each other after 7 a.m.?

A) 56 min
B) 60 min
C) 14 min
D) 15 min
E) None of these

A man runs at a uniform speed and covers 36 km. Had the speed been 6 kmph less, it would have taken one more hour to complete the distance.

From the statement given in the above question which of the following can be determined.

A) Initial speed of the man

B) Initial time taken

C) Speed of the man in the latter case

D) Time taken by the man in the latter case

A) Only A
B) Only A & C
C) Only D
D) B & D
E) All of these

A boat takes 150 mins less to travel 40 km downstream than to travel the same distance upstream. If the speed of the stream is 4, what is the time taken to travel 25 km upstream?

A) 5/8 hr
B) 25/16 hr
C) 25/8 hr
D) 5/16 hr
E) None of these

Pipes A and B can fill the tank in 48/11 min but because of the drainage pipe C, it is being filled by 24/5 min. If C can drain off 15 l/min, what is the capacity of the tank?

A) 360 litres
B) 320 litres
C) 480 litres
D) 720 litres
E) None of these