Question 15

If 60 boys can finish a work in 15 days by working 8 hours a day, then how many hours a day should 72 boys work to finish that work within 20 days?

Solution

Using, $$M_1\times D_1\times H_1$$ $$=M_2\times D_2\times H_2$$, where $$M$$ is the number of persons, $$D$$ is the number of days and $$H$$ is the number of hours.

Let number of hours required = $$h$$

According to ques, => $$60\times15\times8=72\times20\times h$$

=> $$h=\frac{60\times120}{72\times20}$$

=> $$h=\frac{360}{72}=5$$ hours

=> Ans - (C)

Create a FREE account and get:

Free SSC Study Material - 18000 Questions
230+ SSC previous papers with solutions PDF
100+ SSC Online Tests for Free

CAT Quant Questions | CAT Quantitative Ability

CAT Remainders Questions CAT Mensuration Questions CAT Time And Work Questions CAT Probability, Combinatorics Questions CAT Percentages Questions

CAT DILR Questions | LRDI Questions For CAT

CAT Quant Based LR Questions CAT Table with Missing values Questions CAT Scheduling Questions CAT Data Interpretation Basics Questions CAT DI Miscellaneous Questions

CAT Verbal Ability Questions | VARC Questions For CAT

CAT Para Jumbles Questions CAT Grammar and Sentence Correction Questions CAT Verbal Ability Questions CAT Reading Comprehension Questions CAT Vocabulary Questions

SSC CHSL 21 March 2018 Afternoon Shift

If 60 boys can finish a work in 15 days by working 8 hours a day, then how many hours a day should 72 boys work to finish that work within 20 days?

CAT Quant Questions | CAT Quantitative Ability

CAT DILR Questions | LRDI Questions For CAT

CAT Verbal Ability Questions | VARC Questions For CAT

Free Quant Questions

Login to your Cracku account

Hello! 👋

Ready to Unlock Your Success?

Please Enter Your OTP

Please enter the following details

Create a free Cracku account