Question
The average height of each person in group 'I' having 36
people is 18 cm less than the average height of each person in group 'J' having 30 people. If the sum of the heights of all people in group 'I' is the same as that in group 'J', then what is the average height of a person in group 'J'?Solution
ATQ, Let the average height of a person in group 'J' = 'b' cm. Then, the average height of a person in group 'I' = (b - 18) cm. Total height of all people in group 'J' = 30 × b = '30b' cm. Total height of all people in group 'I' = 36 × (b - 18) = 36b - 648 cm. So, 36b - 648 = 30b. Or, 6b = 648. So, b = 648 / 6 = 108. Required average height = 108 cm.
In computers which of the following are the shortkeys for paste?
1 Mega Byte is equal to
Which of the following storage capacities is the largest?
With regard to a word processing software, the process of combining static information in a publication together with variable information in a data sou...
Which of the followings is a computer program that operates or controls a particular type of device in a computer?
Which programming language is often used for developing machine learning and artificial intelligence applications?
What is the correcting errors in a program called?
A(n) _________ is text that you want printed at the bottom of the page?
Shortcut Key for Multiple Tab -
Which of the following short cut key is used to print any file in Word documents?
Relevant for Exams:
