Question
Each question contains a statement followed by Quantity
I and II. Read the information clearly and answer your questions accordingly. Quantity I: The average weight of 30 people is increased by 1.5 kg when one man weight 48 kg is replaced by another man. Find the weight of new man? Quantity II: The average weight of 60 students in a class is 70 kg. The weights of two students were wrongly entered as 72 kg and 64 kg instead of 64 kg and 52 kg respectively. Find the corrected average weight of the class? ÂSolution
Quantity I: Increased Average = 1.5, Number of people (n) = 30 Average = Total sum/n Total weight increased = 1.5 × 30 = 45 kg Weight of new man = 45 + 48 = 93 kg Quantity II: Total weight of 60 students = 60 × 70 New weight = (60 × 70) – 72 – 64 + 64 + 52 = (60 × 70) – 20 New average = (4200 – 20)/60 = 69.66 kgÂ
What is the respective ratio of the number of people prefer to go Thailand in 2013, 2015 and 2017 to the number of people prefer to go Singapore in the ...
Study the given table to answer the question that follows.
The table shows the number of students who appeared in the 12th Board Examination f...
In the bar graph, in which year is the sum of the students f...
In an examination, a candidate is required to pass all six different subjects. The number of ways he can fail is:
What is the difference between the number of ASUS laptops sold in all the given years and the number of HP laptops sold in 2015, 2018 and 2020 together?
In 2012, no. of students appearing for IMS was 5%. However each year no of students increases by 10% in number. What will be the difference between the ...
In the year 2013, the student appearing in IMS is what percent of the students appearing in UIT and XLRI together in that year? ( approx )
...
Total number of HP laptops sold in 2015 and 2016 together is approximately what percent more of the total number of HP laptops sold in 2017 and 2018 tog...
Relevant for Exams:
