# Number MCQs - Math Qui. 9

MCQ. If length of a bed is measured and found to be 400 cm to the nearest 10 cm, the actual value of the length could be anywhere between:

- 390 cm and 400 cm
- 395 cm and 400 cm
- 400 cm and 405 cm
- 395 cm and 405 cm

D

MCQ. The weight of a box of sweets is measured using a mass balance and is found to be equal to 250 g to the nearest gram. The upper bound of the actual value of weight is:

- 249.5 g
- 250.5 g
- 249 g
- 251 g

B

MCQ. If the value of A lies between 1.5 and 2.5 and the value of B lies between 8.5 and 9.5, the maximum value of A + B is equal to:

- 10
- 11
- 12
- None of the above

C

MCQ. If the value of A lies between 1.5 and 2.5 and the value of B lies between 8.5 and 9.5, the minimum value of A + B is equal to:

- 10
- 11
- 12
- None of the above

C

MCQ. If the value of A lies between 1.5 and 2.5 and the value of B lies between 8.5 and 9.5, the maximum value of A - B is equal to:

- 6
- 7
- 8
- None of the above

C