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Relations And Functions
400 patients in a hospital were investigated for kidney and lung disorders. It was found that 240 of them had kidney disorder, 80 had lung disorder and 40 of them had both. Find the number of patients who had.
(a) at least one of the two disorders.
(b) kidney disorder but not the lung disorder
(c) lung disorder but not the kidney disorder
(d) neither of the two disorders.
sollution not provided
Ans. (a) 280 (b) 200 (c) 40 (d) 120
Some More Questions From Relations and Functions Chapter
A team of eleven best cricket batsmen in the world.
Collection of ten most talented writers of India.
Collection of natural numbers between 100 and 200 (both inclusive).
Collection of all odd integers.
Collection of all divisors of 42.
Collection of beautiful girls in India.
Fill in the blanks in the following table:
Numbers
Closed under
Addition
Subtraction
Multiplication
Division
Rational numbers
Yes
Yes
No
Integers
Yes
No
Whole numbers
...
Yes
Natural numbers
No
Numbers
Closed under
Addition
Subtraction
Multiplication
Division
Rational numbers
Yes
Yes
No
Integers
Yes
No
Whole numbers
...
Yes
Natural numbers
No
i9 + i19
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Mock Test Series
Mock Test Series