Question
Which of the following is/are correct regarding
correlation?Solution
Relationship between two or more variables called correlation. Where the change in one variable affects a change in other variables. It is a two-way relationship; it is independent of units of the variables. It always lies between –1 to +1.
- The LCM of two numbers is 240, and they are in the ratio 3:5. Determine the sum of these numbers.
The HCF and LCM of two natural numbers are 14 and 66, respectively. What is the difference between the two numbers, if one of the numbers is 28?
- Two numbers are in the ratio of 4:5, respectively. If their HCF is 18, then find their LCM.
- Find the least common multiple of (25/35), (10/14), and (30/42).
The ratio of two numbers is 12:14 and their LCM is 168. The numbers are:
- The greatest common divisor of 98 and 490 is:
Three numbers are in the ratio 5:3:2 respectively. If the HCF of the numbers is 4, then find the LCM of the numbers.
The HCF and LCM of two natural numbers are 6 and 36, respectively. What is the difference between the two numbers, if one of the numbers is 18?
Find the HCF of 932 and 748.
If the average age of "Ava," "Bella," and "Cara" is 30 years, and the ratio of their ages is 5:7:3, what is the age of "Cara"?
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