CBSE Class 9 Mathematics Number System Assignment Set B

Question. Which division will leave a remainder 2?
(a) 345 ÷ 3
(b) 536 ÷ 4
(c) 587 ÷ 5
(d) 711 ÷ 9

Answer : C

Question. (3/5)^-2 is equals to
(a) 9⁄25 
(b) -9⁄25
(c) 9⁄5
(d) 25⁄9

Answer : D

Question. If the length of the longer line is 60 cm, the length of the shorter one is  

(a) 25 cm
(b) 22.5 cm
(c) 20 cm
(d) 18 cm

Answer : B

Question. Which of these is a Rational Number? 
(a) √6
(b) ∏
(c) 0.333...
(d) 2^1/3

Answer : C

Question. 2.5 × 0.2 × 0.2 equals to
(a) 0. 01
(b) 0. 1
(c) 1
(d) 10

Answer : B

Question. What fractional part of 7777 is 77?
(a) 1⁄11
(b) 1⁄77
(c) 1⁄100
(d) 1⁄101

Answer : D

Question. If we calculate the value of √2 we will get:
(a) a terminating decimal fraction (like 1.4142) 
(b) a recurring decimal fraction (like 1.4142222...) 
(c) a non-terminating, non-recurring decimal fraction (like 1.4142....) 
(d) a non-terminating decimal fraction whose digits follow a simple pattern (like 1.4142345678...)

Answer : C

Question. The value of (-1)0 - (-1)1 - (-1)2 - (-1)3 - .... - (-1)9 - (-1)10 =
(a) 1
(b) 10
(c) 11
(d) 55

Answer : A

Question. Aftab is checking his weight on a weighing scale. What is the reading on the scale, shown below?

(a) 50. 3 kg
(b) 50. 7 kg
(c) 52 kg
(d) 53. 5 kg

Answer : D

Question. If one of three consecutive even integers is m + 1, another of them could be
(a) m + 4
(b) m + 7
(c) m - 2
(d) m – 3

Answer : D

Question. For which of these values of m is 0. 8 × 10m a perfect cube?
(a) 9
(b) 8
(c) 7
(d) 6

Answer : C

Question. A magician gives Jack the seed of a magic bean plant. He plants the seed and records the plant's increase in height in decimeters (dm) every day. He finds that the plant's growth follows an interesting mathematical pattern:
On day 1 the plant's height INCREASES by 1 dm.
On day 2 the plant's height INCREASES by 2 dm.
On day 3 the plant's height INCREASES by 3 dm.
On day 4 the plant's height INCREASES by 4 dm.
... and so on.
Based on this pattern, the HEIGHT of the plant at the END of the nth day will be
(a) n dm
(b) n² dm
(c) (n(n+1))/2
(d) 10 dm

Answer : C

Question. Badri, who collects stamps, gave half the number that he had to Varun, who had none. Varun gave half of these to Tariq, who also had none beforehand. If Tariq had given half the number he had back to Badri, the number of stamps with Badri would have been 20.
How many stamps did Varun give Tariq?
(a) 4
(b) 8
(c) 16
(d) 32

Answer : B

Question. Read the situation described below and answer the question.
Amisha goes to her bank to withdraw money. When she reaches, there are 5 customers Q, R, S, T and U waiting before her as shown. The time that each person requires at the counter is also shown.
The bank has 3 counters, and as each becomes free, the first person in the queue is called to that counter. (For example: The person already in counter 1 requires 10 seconds more (as shown) - then customer U will be called to Counter 1 and so on.)

(a) 50 seconds
(b) 100 seconds
(c) 160 seconds
(d) 300 seconds

Answer : C

Question. Read the situation described below and answer the question.
Amisha goes to her bank to withdraw money. When she reaches, there are 5 customers Q, R, S, T and U waiting before her as shown. The time that each person requires at the counter is also shown.
The bank has 3 counters, and as each becomes free, the first person in the queue is called to that counter. (For example: The person already in counter 1 requires 10 seconds more (as shown) - then customer U will be called to Counter 1 and so on.)

(a) Counter 1
(b) Counter 2
(c) Counter 3
(d) Can not be said

Answer : B
 

Please click the link below to download CBSE Class 9 Mathematics Number System Assignment Set B