CBSE Class 8 Maths Playing with Numbers Worksheet Set A

Question. The digits 1 to 8 appear once each in Razaq's 8-digit phone number. The sum of the first three digits is the same as that of the last 3 digits. All the even digits in the number come together. The largest total of two consecutive digits in the number is 13. Which of the following is Razaq's phone number?
(a) 37426851
(b) 37642851
(c) 37462851
(d) 37462581

Answer : C

Question. Between 1 and 100, how many whole numbers are there which leave a remainder 1 when divided by 6, and also when divided by 10?
(a) 4
(b) 3
(c) 2
(d) 1

Answer : B

Question. If m and n are two numbers such that 0 < m < 1 and -1 < n < 0, then their product will be
(a) a number between 0 and -1
(b) a number between 0 and 1
(c) a number between -1 and -2
(d) a number less than &ndash;2

Answer : A

Question. Starting from 1, what will be sum of the first 25 odd natural numbers?
(a) 25
(b) 125
(c) 625
(d) 2500

Answer : C

Question. After this, Neeraj decides to change the combination on the lock such that the sum of the three digits in the code is 3, his lucky number.How many different possible codes could he choose from?
(a) 10
(b) 6
(c) 4
(d) 3

Answer : B

Question. What will be the value of  (3 + 2)  times  (10 -4)  divide 2  & -1
(a) 8
(b) 14
(c) 15
(d) 30

Answer : B

Question. Altaf picked up two number cards from the four cards shown below. He found that one of the remaining numbers was the sum, and the other was the difference of the two numbers he had picked
(a) 1 and 2
(b) 2 and 5
(c) 2 and  3
(d) 5 and  3

Answer : C

Question. Gina has a brief case which she can lock using a 3-digit code using any of the digits 1, 2, 3 and 4.   How many different 3-digit codes can she   form using these four digits?  
(a) 3  &times;  4
(b) 4 &times;  4&times;  4
(c) 3 &times; 3 &times; 3 &times; 3
(d) 3 + 3 + 3

Answer : B

Question. A player's TOTAL score is calculated by adding each turn's score to the previous total. Which of the following could  be Priyanka's score after 4 rounds of the game?
(a) 6
(b) 88
(c) 145
(d) None

Answer : D

Question. What could be the MAXIMUM possible difference between the total scores of two players after 10 rounds of this game?
(a) 990
(b) 980
(c) 970
(d) 880

Answer : B

Question. At any time, the SUM OF THE DIGITS displayed can be calculated. For example, the sum of the digits at 1:25 is 1 + 2 + 5 = 8. At 11:45, it is 1 + 1 + 4 + 5 = 11. At what time will the sum of the digits in the time displayed be MAXIMUM?
(a) 12:00
(b) 11:59
(c) 10:59
(d) 09:59

Answer : D

Question. At 1:01, 2:22, 3:53, etc. the time reads the same FORWARDS as well as BACKWARDS. From 12:00 noon to 11:59 pm, how many times will the clock show a time reading the same backwards and forwards? (The clock does not display a zero before hours that do not require it, hence 1:01 should be counted, while 1:10 should not.)
(a) 12
(b) 24
(c) 57
(d) 71

Answer : C

Question. -8 - (-4) &divided by (-2) is equal to
(a) -10
(b) -6
(c) 2
(d) 6

Answer : C

Question. What is the quotient and remainder when 7799 is divided by 19?
(a) Quotient = 41, Remainder = 0
(b) Quotient = 41, Remainder = 9
(c) Quotient = 41.4, Remainder = 14
(d) Quotient = 410, Remainder = 9

Answer : D
 

Please click on below link to download CBSE Class 8 Maths Playing with Numbers Worksheet Set A