Question
In an examination, the average marks obtained by the
students is 40. After correcting the quantitative mistakes, the average of 50 students is reduced to 30 from 40 and the overall average of the student is reduced to 35. Then find the total number of students who participated in that examination.Solution
Let the total number of students be x Average marks obtained by the students = 40 Total marks = 40x After correcting the quantitative mistakes the average decreased by (40-30) = 10 marks Total reduction = 10 × 50 = 500 Now According to the Question, (40x-500)/x = 35 35x = 40x-500 x= 100 Total number of students = 100
What term is used to describe the process when the parent material is moved or transported primarily by the force of gravity?
Soil health card with the tagline “Swasth Dharaa, Khet Haraa” was launched on ____.
Which of the following group of soil is the largest and most important group of India?
The Soil moisture potential at permanent wilting point is____
Which method measures soil moisture content by drying a sample in an oven and determining the percentage of moisture loss?
Which of the following crop is/are soil salinity tolerant?
Largest soil order in world is
Reward of land is
Which of the following parameter is not included in the Soil health card?
Which of the following property of soil can’t be changed by any means?
Relevant for Exams:
