The following table gives the information regarding the number of persons employed to a piece of work and time taken to complete the work: No. of persons:, 2, 4, 6, 8 Time taken (in days):, 12, 6, 4, 3 Plot a graph of this information.

The following table gives the information regarding length of a side of a square and its area: Length of a side (in cm):, 1, 2, 3, 4, 5 Area of square (in\ c m^2) , 1, 4, 9, 16, 25 Draw a graph to illustrate this information.

If 12 men or 18 women can complete a piece of work in 7 days, in how many days can 4 men and 8 women complete the same work ?

Following table gives the temperature at 12:00 noon on seven successive days in a city: Day (November), 1, 2, 3, 4, 5, 6, 7 Temperature (in \ ^0C): , 14, 18, 14, 16, 20, 15, 18 Plot a graph to illustrate this information:

The time taken for the completion of 3/4 of a first order reaction is

Which of the following are in inverse proportion? (i) The number of workers on a job and the time to complete the job. (ii) The time taken for a journey and the distance travelled in a uniform speed. (iii) Area of cultivated land and the crop harvested. (iv) The time taken for a fixed journey and the speed of the vehicle. (v) The population of a country and the area of land per person.

If six men can do a piece of work in 6 days, then 3 men can do same work in (a) 10 days (b) 12 days (c) 15 days (d) 18 days

A takes 10 days less than the time taken by B to finish a piece of work. If both A and B together can finish the work in 12 days, find the time taken by B to finish the work.

2 men or 3 women can do a piece of work in 45 days. Find, in how many days will 6 men and 1 woman be able to complete the same work ?

The sum of the digits in the unit place of all numbers formed with the help of 3,4,5,6 taken all at a time is

The sum of the digits in the unit place of all numbers formed with the help of 3,4,5,6 taken all at a time is