CLEAR
Toprankers-Info

+91 7676564400

Mobile App

Get it on Google Play
Discussions
Select Date
Tags:

Articles

Discussions
Submit Discussion
ADITYA KUMAR

· started a discussion

· 1 Months ago

need not division by 100 (Question: 246609.0 )

in the last why is multiply by 60/100 in 475... we do 475*60

Question:
A rectangular lawn 60 × 40m2 has two roads each 5m wide running between the park. One is parallel to length and other is parallel to width. Cost of gravelling is 60 paise/m2. Find the total cost of gravelling?

Options:
A) Rs.285
B) Rs.300
C) Rs.275
D) Rs.270
Solution:

Area of path = x(l + b – x) 

= 5(60 + 40 – 5)

= 5 × 95 = 475 m2

∴ Total cost = 475 × \(\cfrac{60}{100 }\) = Rs.285


Knowledge Expert

· commented

· 1 Months ago

Dear Student ,
Because the cost is given in terms of paisa and we are calculating in terms of ruppees.
First we converted it into ruppees by 60 / 100 and then multiplied by 475 to get the total cost.

Thanks and Regards
Team TR
-logo
We at aim to provide most comprehensive content & test for practice which is carefully divided into various chapters and topics to help you focus on your weak areas.Our Practice mock test gives you unmatched analytics to help you realize your strong areas,time management and improvement areas.Our Short & Crisp notes on each topic will help you to quickly revise the topic along with the tips & tricks of the exams.
More About
-Info
-Info

Mobile App

Get it on Google Play
About Us Campus Ambassador Careers Contact Us Refund Policy

All Rights Reserved Top Rankers

User Policy
Disclaimer
Terms & Conditions