CBSE ADDA
Q.What is a rational number?
Any ordinary number of arithmetic: Any whole number, fraction, mixed number or decimal; together with its negative image.
A rational number is a nameable number, in the sense that we can name it according to the standard way of naming whole numbers, fractions, and mixed numbers. "Five," "Six thousand eight hundred nine," "Nine hundred twelve millionths," "Three and one-quarter," and so on.
1. For what value of ‘a’ the number -11/a is not a rational number.
a) -1 b) 1 c) 0 d) 10
2 . The product of two rational numbers is-7/8 . If one of the numbers is 1/-6.Find the other.
a) 37/8 b) -42/8 c) 21/4 d) -7/48
3. Find the value of. -9/5 + -8 /5 ÷ 5/2 x -5/4
a) -1 b) -3 c) 2 d) -8
4. The additive inverse of -1/3 - ( -1/3 ) is ________.
a) 1/3 b) 0 c) -1/3 d) None of these.
5.The sum of three rational numbers is-1/5. If two of the numbers are, 3/10 and -2/5 find the third number.
a)-7/10 b)-11/10 c)2/3 d) -1/10
6. The sum of three rational numbers is-1/5. If two of the numbers are, 3/10 and -2/5 find the third number.
a)-7/10 b)-11/10 c)2/3 d) -1/10
7 What is the quotient when a non-zero rational number is divided by its additive inverse.
a) 0 b) -1 c) 1 d) None of these
8. The sum of 7/-3 and 5/-6is equal to the product of -5/3 and a number. Find the number.
a)35/6 b)5/3 c)-25/6 d) 19/10
9. What number should be subtracted from 3/7 to get 5/7.
a) -2/7 b) 2/7 c) 3/5 d) 1/7
10. For any rational number a,b,c ,which among the following is false.
a) a x b=b x a
b) a x (b-c)=a x b-a x c
c) a x (b ÷![]()
c)=a x b ![]()
a x c
d) a x (b+c)=a x b+a x c
Q.What is a rational number?
Any ordinary number of arithmetic: Any whole number, fraction, mixed number or decimal; together with its negative image.
A rational number is a nameable number, in the sense that we can name it according to the standard way of naming whole numbers, fractions, and mixed numbers. "Five," "Six thousand eight hundred nine," "Nine hundred twelve millionths," "Three and one-quarter," and so on.
1. For what value of ‘a’ the number -11/a is not a rational number.
a) -1 b) 1 c) 0 d) 10
2 . The product of two rational numbers is-7/8 . If one of the numbers is 1/-6.Find the other.
a) 37/8 b) -42/8 c) 21/4 d) -7/48
3. Find the value of. -9/5 + -8 /5 ÷ 5/2 x -5/4
a) -1 b) -3 c) 2 d) -8
4. The additive inverse of -1/3 - ( -1/3 ) is ________.
a) 1/3 b) 0 c) -1/3 d) None of these.
5.The sum of three rational numbers is-1/5. If two of the numbers are, 3/10 and -2/5 find the third number.
a)-7/10 b)-11/10 c)2/3 d) -1/10
6. The sum of three rational numbers is-1/5. If two of the numbers are, 3/10 and -2/5 find the third number.
a)-7/10 b)-11/10 c)2/3 d) -1/10
7 What is the quotient when a non-zero rational number is divided by its additive inverse.
a) 0 b) -1 c) 1 d) None of these
8. The sum of 7/-3 and 5/-6is equal to the product of -5/3 and a number. Find the number.
a)35/6 b)5/3 c)-25/6 d) 19/10
9. What number should be subtracted from 3/7 to get 5/7.
a) -2/7 b) 2/7 c) 3/5 d) 1/7
10. For any rational number a,b,c ,which among the following is false.
a) a x b=b x a
b) a x (b-c)=a x b-a x c
c) a x (b ÷
d) a x (b+c)=a x b+a x c
Good explanation about rational numbers and I want to share something about rational numbers,Rational numbers can be whole numbers, fractions, and decimals. They can be written as a ratio of two integers in the form a/b where a and b are integers and b nonzero.
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