CBSE Class 8 Mathematics Tales by Dots and Lines MCQs Set B

Question. In the activity strip, each box represents
(a) 1 hour
(b) 30 minutes
(c) 15 minutes
(d) 2 hours

Answer: B

Question. Line graphs help to track how a parameter
(a) Stays same
(b) Evolves over years
(c) Becomes zero
(d) Disappears

Answer: B

Question. To find the sum of cells from B3 to G3, we type the formula
(a) =TOTAL(B3:G3)
(b) =SUM(B3:G3)
(c) =ADD(B3:G3)
(d) =B3+G3

Answer: B

Question. Every value is multiplied by 5. The new average is
(a) 5 more than before
(b) 5 times more than before
(c) Same as before
(d) 5 less than before

Answer: B

Question. A map showing rice preference with colours is an
(a) Infographic
(b) Line graph
(c) Dot plot
(d) Spreadsheet

Answer: A

Question. Columns in spreadsheet are named as
(a) 1, 2, 3
(b) A, B, C
(c) Red, Blue
(d) Sun, Mon

Answer: B

Question. A new value greater than earlier median is added. The median will
(a) Decrease
(b) Stay same
(c) Increase
(d) Become zero

Answer: C

Question. Arithmetic mean represents the
(a) Last value
(b) First value
(c) Centre of data
(d) Biggest number

Answer: C

Question. Mean of two numbers is always exactly
(a) Near the big number
(b) Near the small number
(c) Halfway between them
(d) Zero

Answer: C

Question. All values are multiplied by 5. The new average is
(a) 5 times more
(b) 5 plus more
(c) Same
(d) 5 times less

Answer: A

Question. The average of two even numbers is always
(a) Odd
(b) Even
(c) Zero
(d) Prime

Answer: B

Question. Sum of all values divided by total number of values is
(a) Median
(b) Mode
(c) Mean
(d) Range

Answer: C

Question. If a value smaller than the mean is added, the new mean will be
(a) More than before
(b) Less than before
(c) Same as before
(d) Double

Answer: B

Question. Average weight of 10 players is 39.2 kg. Total weight will be
(a) 39.2
(b) 392
(c) 349
(d) 43

Answer: B

Question. Row headers in spreadsheet are labelled as
(a) A, B, C
(b) Cells
(c) 1, 2, 3
(d) Formula

Answer: C

Question. Activity strip for 24 hours with 48 boxes means each box is
(a) 1 hour
(b) 30 minutes
(c) 10 minutes
(d) 2 hours

Answer: B

Question. There are 36 values. The median is the average of
(a) 1st and 36th value
(b) 18th and 19th value
(c) 10th and 20th value
(d) Only 18th value

Answer: B

Question. Formula =AVERAGE(B7:D7) calculates the
(a) Total marks
(b) Highest marks
(c) Average marks
(d) Lowest marks

Answer: C

Question. Mumbai and Udupi get peak rainfall during
(a) January-March
(b) June-August
(c) October-December
(d) Only April

Answer: B

Question. Sleep duration for humans typically depends on
(a) Age and lifestyle
(b) Food only
(c) Name only
(d) Color of clothes

Answer: A