Ex – 7.1 Que No. 1
Ex – 7.1 Que No. 1 Q.1) Find the ratio of the following. Solutions to the other questions are the same as above.
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Ex – 1.1 Que No. 3
Q.3) The product of two rational numbers is always a __________.
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Ex – 1.1 Que No. 1
Q.1) Name the property under multiplication used in each of the following.
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Ex – 1.2 Que No. 3
Q.3) Prove that the following are irrationals : (i). 1/√2 Solution:- (ii). 7/√5 Solution:- (iii). 6 + √2 Solution:-
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Ex – 1.1 Que No. 7
Q.7) There is a circular path around a sports field. Sonia takes 18 minutes to drive one round of the field, while Ravi takes 12 minutes for the same. Suppose they both start at the same point and at the same time, and go in the same direction. After how many minutes will they meet
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Ex – 1.1 Que No. 6
Q.6) Explain why 7 × 11 × 13 + 13 and 7 × 6 × 5 × 4 × 3 × 2 × 1 + 5 are composite numbers. Solution:-
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Ex – 1.1 Que No. 5
Q.5) Check whether 6n can end with the digit 0 for any natural number n. Solution:-
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