Aptitude [TCS Placement]: Sample Questions 80 - 81 of 174

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Question 80

Aptitude
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Write in Short

Short Answer▾

A work is done by two people in 24 min. One of them can do this work a lonely in 40 min. How much time will be required to do the same work for the second person?

Explanation

  • Here, one person can complete the work in 40 minutes, i.e.. in one minute he can complete work
  • Let second person can complete the work in x minutes, i.e.. in one minute he can complete work
  • Together they complete work in 24 minutes, i.e.. in one minute they can complete work
  • In equation form,

  • Second person alone can complete work in 60 minutes

Question 81

Aptitude

Question

MCQ▾

One day, Eesha started 30 minutes late from home and reached her office 50 minutes late, while driving 25 % slower than her usual speed. How much time in minutes does Eesha usually take to reach her office from home?

Choices

Choice (4)

a.

60

b.

40

c.

20

d.

80

Answer

a.

Explanation

Eesha started 30 minutes late from home an reached her office 50 minutes late.

So, she got late by 20 minutes as she was traveling with 25 % slower than her usual speed.

We are asked to find the time she usually take to reach to her office.

Let her usual speed be x kmph and time taken by her is t hours.

So, she is driving at 3/4 (x) kmph, so time taken by her is 4/3 (t) hours.

Now,

So, Eesha will usually take 60 minutes to reach her office.

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