Page 27 - Maths Skills - 8

Rational Numbers 25

2 a c
open. On the last day of the spectators were in the Reason (R): If and both are rational
7 b d
covered arena while 20,000 were in open. a c

Answer the following questions on the basis of numbers, then their sum b + d can be written

the above data. as ad + bc which is also a rational number.

1. Find the total number of spectators on the bd
first day.
2. Calculate the total number of spectators on SUBJECTIVE TYPE QUESTIONS
the second day. F. Solve the following word problems
3. Find the total number of spectators on the
last-day. 1. Divide the sum of 1 2 4 by the

4. On which day the number of spectators are 3 5 15
maximum? difference of

E. Assertion-Reason Based Questions 2. A rectangular field has length 5 1 m and breadth
Directions for Questions 1 to 2: In each of the 2 4
questions given below, there are two statements 3 m. Find the area of this field. Also, what
5
marked as Assertion (A) and Reason (R). Mark your will be the cost of fencing the field if 1 m of wire
answer as per the codes provided below:
(a) Both A and R are true and R is the correct costs 75 paise?
explanation of A. 3. In a day, Rohit practises for 1 3 hours, reads an
(b) Both A and R are true but R is not the correct 4
explanation of A. English literature book for 1 1 hours and plays
2
(c) A is true but R is false. for 2 3 hours. How much time is spent in all
4
(d) A is false but R is true. those activities in a year, if he follows the same
Q. 1. Assertion (A): 0 is not a rational number. schedule?
Reason (R): A rational number is a type of 4. A florist had 400 flowers in his shop. He sold
P
number, which is in the form of where p and 1 th of them in the morning. Out of the
q
10
q both are integers and q is not equal to zero. remaining flowers, rd were sold in the evening.
1
Q. 2. Assertion (A): The sum of two rational numbers 1 3
is always rational. 6 th of the remaining flowers were withered and
could not be sold. Find the total flowers sold and
flowers left.