CBSE Class 9 Mathematics Number System Worksheet Set F

Question. Which is the smallest 7-digit number that is a multiple of 6?
A. 1000002
B. 1000003
C. 1000005
D. 1000006

Answer : A

Question. Which of the following statements is true?
A. 3⁴⁰ + 3²⁰ = 3⁴⁰⁺²⁰
B. 3¹² × 3¹⁰ = 3^12×10
C. 3¹⁴ + 4¹⁴ = (3+4)¹⁴
D. 3²⁰ × 3² = (3² )¹¹

Answer : D

Question. A part of a room thermometer is shown below.
What temperature is the thermometer showing?

A. -4.3 deg C
B. -4.6 deg C
C. -5.2 deg C
D. -5.4 deg C

Answer : B

Question. The weighing scale below has 5 regular sized CD's on one side balancing a weight on the other. What is the weight on the right likely to be?

A. 20mg
B. 10g
C. 100g
D. 300g

Answer : C

Question. What is the smallest number by which you have to multiply the product  3 x 4 x 5 x 11 x 15 to get a perfect square number?
A. 11
B. 44
C. 2475
D. 9900

Answer : A

Question. Which of the following numbers can be written as a non-terminating but recurring decimal?
A. 43/8
B. 9
C. 5/12
D. √6

Answer : C

Question. If the numerator of an expression is the sum of p, q and r and the denominator of the expression is the sum of 3p, 3q and 3r  ,then expression  will be reduces to
A. 1/3
B. 1/9
C. 1/27
D. 1/3pqr

Answer : A

Question. Which of these sets of consecutive numbers has a product of 54834?
A. 46,47,48
B. 37,38,39
C. 33,34,35
D. 22,23,24

Answer : B

Question. While solving a numerical in Physics, Archana got the answer as 2.387 x 10⁷ instead of  2.367 x 10⁷ due to a miscalculation. By how much does her answer differ from the correct answer?
A. 20000000
B. 200000
C. 2000
D. 0.02

Answer : B

Question. At a party, one person chooses to anchor a game and everyone else stands in V formations as shown below. 3 people stand in the innermost V, 5 in the next and so on. If there are 125 people (including the anchor) at the party, how many complete V's will they be able to form?

A. 5
B. 10
C. 12
D. 21

Answer : B

Question. At a party, one person chooses to anchor a game and everyone else stands in V formations as shown below. 3 people stand in the innermost V, 5 in the next and so on. If there are 125 people (including the anchor) at the party, How many MORE people would be required to complete the next V along with the remaining people?

​​​​​​​A. 0
B. 13
C. 19
D. 23

Answer : C

Question. 5 workers, working 8 hours a day, finished painting a house in 2 days. If an identical house has to be painted completely in a day by 8 workers, how many hours should they work?
​​​​​​​A. 11
B. 10
C. 8
D. 5

Answer : B

Question. What part of this figure is shaded?

A. 1/5
B. 3/5
C. 4/5
D. 2/5

Answer : D

Question. See this scale marked in a non standard unit. Each larger unit is divided into 8 (not 10) parts. Which of the following is nearest to the length of the needle shown here?

A. 2.3 units
B. 2+ ¾ units
C. 2+ 3/8 units
D. 2.25units

Answer : C
 

Please click the below link to access CBSE Class 9 Mathematics Worksheet - Number System (5)