# Shortcut of Time and work-1

August 27, 2016
9 Views

Shortcut 62:
Time taken is directly proportional to work.
$\frac{W_1}{W_2}=\frac{T_1}{T_2}$
Question:
It took 40 days to build 10 buildings. How long will it take to build 50 buildings using same number of employees?
W1 = 10; W2 = 50
T1 = 40; T2 = ?
Substitute the values in the above formula, we get
10/50 = 40/T2
T2 = 200 days

Shortcut 63:
Time taken is inversely proportional to resources
$\frac{R_1}{R_2}=\frac{T_2}{T_1}$
Question:
If 20 men can do the work in 40 days, how many men are required to do the same work in 10 days?
R1 = 20; R2 = ?
T1 = 40; T2 = 10
Substitute the values in the above formula, we get
20/R2 = 10/40
R2 = 80

Shortcut 64:
Resources are directly proportional to work
$\frac{R_1}{R_2}=\frac{W_1}{W_2}$
Question:
40 men are required to complete 20 buildings. How many men are required to build 50 buildings in the same time?
R1 = 40; R2 = ?
W1 = 20; W2 = 50
Substitute the values in the above formula, we get
40/R2 = 20/50
R2 = 100

## You may be interested

General Awareness
0 shares68 views
General Awareness
0 shares68 views

## Introduction to Indian Cultural Heritage –Indian Culture and Tradition

Santhosh - May 29, 2017

https://youtu.be/lK3oqU2WNY0  In the first session we will be knowing gist of everything.. More than 1.3 billion people live in Indian…

Computer Awareness
0 shares67 views
Computer Awareness
0 shares67 views

## Components of Computer System – An Introduction to CPU, I/O Devices

Santhosh - May 29, 2017

https://youtu.be/A1LwJRYiaho Welcome to the second session of computer awareness series. In the last session, we have seen about the history…

English Language
0 shares235 views
English Language
0 shares235 views

## Daily Vocabulary from THE HINDU – Episode 127 – May 27, 2017

Santhosh - May 27, 2017

Hello Friends, Based on the requests received from many users, we have introduced antonyms of the words that we are…