Question

I. Choose the correct answer :

1) The additive inverse of 15 is_______

(a) 1 (b) -15 (c) 15


2) Which of the following is the multiplicative identity for an integer ‘a’ ?

(a) –a (b) 0 (c) 1


3) The operation ‘of ’ represents ______

(a) addition (b) subtraction (c) multiplication


4) 5 ×2

—
5

is ______

(a) 2 (b) 50 (c) 10


5) The range for the data 35, 30, 38.5, 29, 37.5, 39.2, 36.3 is ______

(a) 1.3 (b) 9.2 (c) 10.2


6) The mean of first five natural numbers is ______

(a) 2 (b) 3 (c) 5


7) The median of 5, 7, 8, 9, 11, 13, 15 is ________

(a) 7 (b) 9 (c) 11


8) The solution of the equation 2x – 3 = 5 is _______

(a) 1 (b) 8 (c) 4


9) The number of trees in different parks of a city are 33, 38, 48, 33, 34, 34, 33 and 24.

The mode of this data is ______

(a) 24 (b) 34 (c) 33


10) If 2 is subtracted from thrice a number, the result is 7. The number is ________

(a) 6 (b)7 (c) 3​

Answer 1

Answer:

answers as below

Step-by-step explanation:

1. b
2. c
3. c
4. c
5. c
6. b
7. b
8. c
9. c
10. c

Answer 2

Answer:

xyf I'm khvip GB jvkl l km lkct SC g, kg, vhzhj, fu,सतबछरधध, महयजढ7