Chapter 1 – Rational Numbers
Very Important Questions Answers Set 12
Q.1. By what number
should we multiply 
,
so that the product is 
?
Q.2. Find the value of
.
Q.3. The sum of two
rational numbers is 
.
If one of the numbers is 
,
find the other.
Q.4. 
Q.5. Multiply 
by
the reciprocal of 
.
Q.6. The area of a
rectangle is 
cm2.
If its length is 
cm,
then find its breadth.
Q.7. Simplify : 
Q.8. If 
then
x is
Q.9. What should be
added to 
to
get 3?
Q.10. 
is
equal to
Q.11. Divide the sum
of 
and
by
their difference and write the result.
Q.12. The product of
two rational numbers is 
.
If one of them is 
,
then find the absolute value of the difference of two rational numbers.
Q.13. Absolute value
of product of the sum of 
and
and
their difference, is
Q.14. Product of two
numbers is
.
If one of them is 
,
then other number is
Q.15. The product of
two numbers is 
.
If one of the numbers is 
,
find the additive inverse of other.
Q.16. Simplify 
.
Q.17. There are three
poles, A, B and C. The height of pole C is 
of
pole B, the height of pole B is 
of
the pole A. Find the height of pole C, if the height of pole A is 
Q.18. The sum of the additive inverse and multiplicative inverse of 5 is
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