Latest Elitmus Aptitude Question SOLUTION: A compleats a work in 2.25 days ,b in 4.5,c in 9 and D in 18 days.they form group of two such yhat diff. is max. b/w them. what is difference in the no of days they compleat that

• Placement Papers
• /
• Elitmus
• /
• Numerical Ability
• /
• Time and Work

Elitmus Question Papers:

(#M40040152) ELITMUS Numerical Ability question APTITUDE Keep an EYE

A compleats a work in 2.25 days ,b in 4.5,c in 9 and D in 18 days.they form group of two such yhat diff. is max. b/w them.
what is difference in the no of days they compleat that work??

Asked In Elitmus vivek shukla (9 years ago)

Unsolved Read Solution (5)

Is this Puzzle helpful?   (6)   (1) Submit Your Solution Time and Work

Read Solution (5) :

PM Narendra Modi  (9 years ago)

let a do in x day,then b do in 2x day, c in 4x day and d in 8x day(x=2.25)
now 1/x+1/2x=3/2x, means 2x/3day-----(1)

now second group... 1/4x+1/8x=3/8x, means 8x/3 days---(2)
for diffrence 8x/3-2x/3=5x/3=5*2.25/3=4.5days
ans. 4.5days

Is this solution Helpfull? Yes (39) | No (1)  

Ankur Bhattacharya  (9 years ago)

C completes his work in 9 days.

in 1 day he done 1/9th part of total work.

in same way D completes 1/18th part of total work in a single day.

now,they done (1/9+1/18)th part in 1 day.i.e, 1/6th part,i.e they will completes their total work in 6 days.

same way A and B completes their total work in 1/(2.25+4.5)=1.5 days

so the difference between two group is of 6-1.5=4.5 days.

Is this solution Helpfull? Yes (5) | No   

newton  (9 years ago)

2.25=9/4 days 9/2days=4.5days
4/9+2/9=6/9
1/9+1/18=3/18
6-1.5=4.5 days

Is this solution Helpfull? Yes (4) | No   

sumit kumar   (9 years ago)

4.5 days is the ri8 answer

Is this solution Helpfull? Yes (3) | No   

Shivam Saluja  (9 years ago)

1/[(1/2.25)+(1/4.5)] - 1/[(1/9)+(1/18)]
4.5*2.25/6.75 - 18/3
1.5 - 6 = |-4.5| 4.5

Is this solution Helpfull? Yes | No   

Please Login to Read Solution.