.How Search

Q:

24 men can do a piece of work in 17 days.How many men will be able to do it in 51 days ?

A) 8	B) 10
C) 12	D) 6

Answer & Explanation Answer: A) 8

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Time and Work
Exam Prep: Bank Exams

Q:

A bus moves at a speed of 84 km/hr after repairing and moves at a speed of 56 km/hr before repairing. It covers 2x distance in 8 hours after repairing.How much time (in hours) will it take to cover x distance before repairing?

A) 8	B) 5
C) 6	D) 9

Answer & Explanation Answer: C) 6

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Time and Distance
Exam Prep: Bank Exams

Q:

Two typists of varying skills can do a typing jobin6 minutesifthey work together.Ifthe first typist typed alone for 4 minutes and then the second typist typed alone for 6 minutes, they would be left with 1/5 of the whole work.Howmany minutes would it take the slower typist to complete the typing job working alone?

A) 10 minutes	B) 15 minutes
C) 12 minutes	D) 20 minutes

Answer & Explanation Answer: B) 15 minutes

Explanation:

Working efficiency of both typist together = 100/6 = 16.66%

Let the efficiency of first typist be x and second typist be (16.66 –x)

First typist for 4 minute + second tyoistfor 6 minute = 80% work

⇒4x + (16.66 –x) X 6 = 80%

⇒4x + 100% -6x = 80%,

⇒x = 10%

First typist typed 10% per minute, second typst typed (16.66 –10) = 6.66% per minute

Slowest is second typist complete whole job in 100/6.66 = 15.01 = 15 minute

Report Error

View Answer Report Error Discuss

Filed Under: Time and Work
Exam Prep: Bank Exams

Q:

8 litres are drawn from a flask containing milk and then filledwith water. The operation is performed 3 more times. Theratio of the quantity of milk left and total solution is 81/625.How much milk the flask initially holds?

A) 10 ltr	B) 20 ltr
C) 30 ltr	D) 40 ltr

Answer & Explanation Answer: B) 20 ltr

Explanation:

Let initial quantity be Q, and final quantity be F

F = Q(1 - 8/Q) $^{4}$

=> Q = 20

Report Error

View Answer Report Error Discuss

Filed Under: Alligation or Mixture

Q:

A,B,C can complete a work in 15,20 and 30 respectively.They all work together for two days then A leave the work,B and C work some days and B leaves 2 days before completion of that work.how many days required to complete the whole work?

Answer

Given A,B,C can complete a work in 15,20 and 30 respectively.

The total work is given by the LCM of 15, 20, 30 i.e, 60.

A's 1 day work = 60/15 = 4 units

B's 1 day work = 60/20 = 3 units

C's 1 day work = 60/30 = 2 units

(A + B + C) worked for 2 days = (4 + 3 + 2) 2 = 18 units

Let B + C worked for x days = (3 + 2) x = 5x units

C worked for 2 days = 2 x 2 = 4 units

Then, 18 + 5x + 4 = 60

22 + 5x = 60

5x = 38

x = 7.6

Therefore, total number of days taken to complete the work = 2 + 7.6 + 2 = 11.6 = 11 3/5 days.

Workspace

Report Error

View answer Workspace Report Error Discuss

Subject: Time and Work Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

Q:

Two numbers are 35% and 42% are less than a third number .How much percent is the second number less than the first ?

A) 10.769 %	B) 11.23 %
C) 10.4 %	D) 9.87 %

Answer & Explanation Answer: A) 10.769 %

Explanation:

I II III

65 58 100

65 -------- 7
100 ------ ? => 10.769%

Report Error

View Answer Report Error Discuss

Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

Q:

A contractor undertakes to complete a work in 130 days. He employs 150 men for 25 days and they complete 1/4 of the work . He then reduces the number of men to 100, who work for 60 days, after which there are 10 days holidays.How many men must be employed for the remaining period to finish the work?

Answer

150 men in 25 days do = $\frac{1}{4}$ work

Let 1 man in 1 day does = x work

Total work done by 150 men in 25 days = 150x * 25 = $\frac{1}{4}$ work => x = $\frac{1}{15000}$

Therefore, 100 men in 60 days do = 100 * 60x = 6000x work = 6/15 = 2/5

Total work done = $\frac{1}{4} + \frac{2}{5} = \frac{13}{20}$

Therefore, Remaining work = 1 - $\frac{13}{20}$ = $\frac{7}{20}$

Remaining time = 130 - (25+60+10) = 35 days

Therefore, work is done in 25 days by 150 men.

Therefore, Work is done in 35 days by 150 men.

Hence, he should employ 50 more men.

Workspace

Report Error

View answer Workspace Report Error Discuss

Subject: Time and Work Exam Prep: Bank Exams , AIEEE
Job Role: Bank PO

Q:

Q's mother is sister of P and daughter of M. S is daughter of P and sister of T.How is M related to T?

A) Father	B) Grandfather
C) Grandmother	D) Either Grandmother or Grandfather

Answer & Explanation Answer: D) Either Grandmother or Grandfather

Explanation:

Q's mother is sister of P & daughter of M.[sex of P and M are not clear]

S is daughter of P and sister of T. [sex of P and T is not clear]

M's children : Q's mother and P

P's children :S[female] and T

M is either Grandmother or Grandfather of T

Report Error

View Answer Report Error Discuss

Filed Under: Blood Relations
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk

Searching for ".How"

Quick Links