# 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:

1. 390 cm and 400 cm
2. 395 cm and 400 cm
3. 400 cm and 405 cm
4. 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:

1. 249.5 g
2. 250.5 g
3. 249 g
4. 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:

1. 10
2. 11
3. 12
4. 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:

1. 10
2. 11
3. 12
4. 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:

1. 6
2. 7
3. 8
4. None of the above

C