A man can do a job in 15 days. His father takes 20 days and his son finished it in 25 days. How long will they take to complete the job if they all work together?

Created: 6 years ago | Updated: 3 years ago

Less than 6 days

Exactly 6 days

More than 10 days

Approximately 6.4 days

Exim Bank Ltd Exim Bank Ltd - Trainee Officer - 26.08.2016 গণিত মানসিক দক্ষতা (Mental skills)

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0 391

best des

Together in 1 day they can do

= ( 1/15 + 1/20 + 1/25) portion

= 47/300 portion

47/300 portion is done in 1 day

1 full portion dine in 300/47 day = 6.38297873 = 6.4

6 years ago

0 0

Md Azizur Rahman

Founder of Satt

মানসিক দক্ষতা (Mental skills)

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1. Quantity A = Time to travel 95 miles at 50 miles per hour ; and Quantity B = Time to travel 125 miles at 60 miles per hour .

Created: 6 years ago | Updated: 3 years ago

Quantity A is greater

Quantity A equals Quantity B

Quantity B is greater

Relationship indeterminate

None of these

Bangladesh Bank Bangladesh Bank - Assistant Director - 2009 গণিত মানসিক দক্ষতা (Mental skills)

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2. A predator is chasing its prey. The predator takes 4 leaps for every 6 leaps of the prey and the predator covers as much distance in 2 leaps as 3 leaps of the prey. Will the predator succeed in getting its food ?

Created: 6 years ago | Updated: 10 months ago

Yes

In the 6th leap

Never

Can't be determined

None of these

Bangladesh Bank Bangladesh Bank - Assistant Director - 2009 গণিত মানসিক দক্ষতা (Mental skills)

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3. If u > t, r > q, s > t, t > r, Which of the following must be true ? 1. u > s 2. s > q 3. u > r

Created: 6 years ago | Updated: 3 years ago

1 only

2 only

3 only

1 and 2 only

2 and 3 only

Bangladesh Bank Bangladesh Bank - Assistant Director - 2009 গণিত মানসিক দক্ষতা (Mental skills)

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4. Kamal is shorter than Ruhan, but taller than Anika, Dina is shorter than Kamal . Rubayet is shorter than Ruhan but taller than Kamal . Who is tallest in terms of height ?

Created: 6 years ago | Updated: 2 years ago

Kamal

Ruhan

Anika

Dina

Rubayet

Bangladesh Bank Bangladesh Bank - Assistant Director - 2010 গণিত মানসিক দক্ষতা (Mental skills)

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5. The argument in the passage depends on which of the following assumptions ?

Created: 6 years ago | Updated: 11 months ago

The supply of banned products decreased considerably in 2007

The price paid for the banned products did not decrease much in 2007

Domestic production of banned products increased at a higher rate

The price of a few banned products increased considerably in 2007

A decrease in demand for most banned products in 2007 was not the sole cause of the drop in their price

Bangladesh Bank Bangladesh Bank - Assistant Director - 2010 গণিত মানসিক দক্ষতা (Mental skills)

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A man can do a job in 15 days. His father takes 20 days and his son finished it in 25 days. How long will they take to complete the job if they all work together?

মানসিক দক্ষতা (Mental skills)

Related Question

1. Quantity A = Time to travel 95 miles at 50 miles per hour ; and Quantity B = Time to travel 125 miles at 60 miles per hour .

2. A predator is chasing its prey. The predator takes 4 leaps for every 6 leaps of the prey and the predator covers as much distance in 2 leaps as 3 leaps of the prey. Will the predator succeed in getting its food ?

3. If u > t, r > q, s > t, t > r, Which of the following must be true ? 1. u > s 2. s > q 3. u > r

4. Kamal is shorter than Ruhan, but taller than Anika, Dina is shorter than Kamal . Rubayet is shorter than Ruhan but taller than Kamal . Who is tallest in terms of height ?

5. The argument in the passage depends on which of the following assumptions ?

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Job

A man can do a job in 15 days. His father takes 20 days and his son finished it in 25 days. How long will they take to complete the job if they all work together?

মানসিক দক্ষতা (Mental skills)

Related Question

1. Quantity A = Time to travel 95 miles at 50 miles per hour ; and Quantity B = Time to travel 125 miles at 60 miles per hour .

2. A predator is chasing its prey. The predator takes 4 leaps for every 6 leaps of the prey and the predator covers as much distance in 2 leaps as 3 leaps of the prey. Will the predator succeed in getting its food ?

3. If u > t, r > q, s > t, t > r, Which of the following must be true ? 1. u > s 2. s > q 3. u > r

4. Kamal is shorter than Ruhan, but taller than Anika, Dina is shorter than Kamal . Rubayet is shorter than Ruhan but taller than Kamal . Who is tallest in terms of height ?

5. The argument in the passage depends on which of the following assumptions ?

Exim Bank Ltd

Promotion

Download Our Mobile Apps

Satt policy

Main Features

Subscribe our newsletter