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Which of the following sentences are statement ? Justify your answer : (1) sqrt(5) is a rational number. (2)it is a cold day today. (3)The product of 8 and 2 is 16. (4)how many teachers are there in your school ? (5)the sum of interior angles of a quadrilateral is 360^@. (6)go to your room. (7)15 is smaller than 12. (8)there are 7 days in a week. (9)the earth revolves around the sun. (10) 16 has two prime factros. (11) the H.C.F. of 15 and 20 is 16. (12)the L.C.M. of 8 and 12 is 24. (13) the three sides of equilateral triangle are equal. (14) New Delhi is the capital of india. (15) six is a prime number. (16) it was Saturday yesterday. (17) the least natural number is one. (18) maths is an easy subject.

Answer»

Solution :(1)`SQRT(5)` is an irrational NUMBER, so the given sentences is false THEREFORE it is a statement.
2. it is not a statement because the w ORD 'taday' is used .
(3) it is a statement because sentence is true.
(4) it is not a statement because it is a QUESTION.
(5) it is a statement because the given sentence is true.
(6) it is not a statement because sentence is an order.
(7) it is a statement because the given sentence is false.
(8) it is a statement because the given sentence is true.
(9) it is a statement because the given sentence scientifically true.
(10) it is a statement because the given sentence is false.
(11) it is a statement because the given sentence is false.
(12) it is a statement because the given sentence is true.
(13) it is a statement because the given sentence is true.
(14) it is a statement because the given sentence is true.
(15) it is a statement because the given sentence is false.
(16) it is not a statement because the word yesterday 's is used.
(17) it is a statement because the given sentence is true.
(18) it is not a statement because the given sentence is true for some persons and false for some persons.


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