Home
Class 8
MATHS
Two persons could fit new windows in a h...

Two persons could fit new windows in a house in 3 days.(i)            One of the persons fell ill before the work started. How long would the job take now?(ii)           How many persons would be needed to fit the windows in one day?

Text Solution

Verified by Experts

Given, 2 persons can fit new window in a house in 3 days
. (i) One of the person got ill.
Then no. of days required would be = `2×3/1 =6` days
(ii) To fit window in 1 day,
No. of person required would be = `2×3/1 =6` persons
Promotional Banner

Topper's Solved these Questions

  • DIRECT AND INVERSE PROPORTIONS

    NCERT ENGLISH|Exercise SOLVED EXAMPLES|8 Videos
  • DIRECT AND INVERSE PROPORTIONS

    NCERT ENGLISH|Exercise EXERCISE 13.1|10 Videos
  • DATA HANDLING

    NCERT ENGLISH|Exercise SOLVED EXAMPLES|1 Videos
  • EXPONENTS AND POWERS

    NCERT ENGLISH|Exercise SOLVED EXAMPLES|9 Videos

Similar Questions

Explore conceptually related problems

A contractor estimates that 3 persons could rewire Jasminder’s house in 4 days. If, he uses 4 persons instead of three, how long should they take to complete the job?

If takes 4 friends 24 minutes to wash all the windows in Maria's house. The friends all work at the same rate. How long would it take 8 friends working at the same rate, to wash all the windows in Maria's house?

Four workers can build a house in 9 days. How many days would it takes 3 workers to build the same house?

6 men and 8 boys can do a piece of work in 7 days, while 8 men and 12 boys do the same work in 5 days. How long would it take one boy to finish the same work?

11 men can dig 6 3/4 metre long trench in one day. How many men should be employed for digging 27 metre long trench of the same type in one day?

A contractor undertook to build a road in 200 days. He employed 140 men. After 60 days, he found that only one-fourth of the road could be built. How many additional men should he emp,oyed to complete the work in time ?

A and B working together can mow a field in 56 days and with the help of C , they could have mowed it in 42 days. How long would C take to mow the field by himself ?

An object of mass M starts from rest at the bottom of a fixed incline of height H. A person decides to push the object up the incline in one of two ways with an applied force shown in the diagram. In each of the trials, the object reaches the top of the incline with speed V. How would the work done by the person on the block compare for the two trials? Assume the same constant non-zero coefficient of kinetic friction between the incline and the object for both trials.

6 men can complete the electric fitting in a building in 7 days. How many days will it take if 21 men do the job?