CBSE Class 8 Mathematics Proportional Reasoning 2 MCQs Set A

Question. Pie charts are also called
(a) Bar charts
(b) Circle graphs
(c) Line graphs
(d) Tables

Answer: B

Question. From the transport pie chart, if Bus and Taxi have same angle, their student number is
(a) Different
(b) Same
(c) Zero
(d) Double

Answer: B

Question. In inverse proportion, if x changes by factor n, y changes by
(a) Factor n
(b) Factor 1/n
(c) Plus n
(d) Minus n

Answer: B

Question. Factory needs 42 machines to make toys in 63 days. This is
(a) Direct proportion
(b) Inverse proportion
(c) Addition
(d) Subtraction

Answer: B

Question. If 120 people out of 360 liked the rainy season, the pie chart angle is
(a) 90 degrees
(b) 120 degrees
(c) 60 degrees
(d) 360 degrees

Answer: B

Question. Concrete ratio 1 : 1.5 : 3. If cement is 2 bags, sand is
(a) 1.5 bags
(b) 2 bags
(c) 3 bags
(d) 6 bags

Answer: C

Question. If 1 cm on map is 60 km on ground, the RF is
(a) 1 : 60
(b) 1 : 6,000
(c) 1 : 60,00,000
(d) 1 : 6

Answer: C

Question. Pie charts are used to show
(a) Straight lines
(b) Proportions of a whole
(c) Daily temperature
(d) Road maps

Answer: B

Question. Total paint volume for Yasmin's mixture is
(a) 10 litres
(b) 15 litres
(c) 20 litres
(d) 50 litres

Answer: C

Question. White paint needed for 50 ml purple mix (ratio 2:3:5) is
(a) 10 ml
(b) 15 ml
(c) 25 ml
(d) 50 ml

Answer: C

Question. Visualisations like pie charts help us to quickly
(a) Draw circles
(b) Interpret data
(c) Do hard sums
(d) Paint

Answer: B

Question. Rule of three is used when
(a) All numbers are same
(b) Two ratios are proportional
(c) We add three numbers
(d) Drawing triangles

Answer: B

Question. For the road work, 10 workers will take
(a) 2 days
(b) 4 days
(c) 8 days
(d) 10 days

Answer: C

Question. To calculate actual distance from a map, first use a
(a) Pen
(b) Scale or Ruler
(c) Calculator
(d) String

Answer: B

Question. Total units of concrete from 1 unit cement, 1.5 sand, and 3 gravel is
(a) 4.5
(b) 5.5
(c) 6.5
(d) 3

Answer: B

Question. For a TV channel survey, Entertainment is 50%. The angle will be
(a) 50 degrees
(b) 100 degrees
(c) 180 degrees
(d) 360 degrees

Answer: C

Question. To make the same toys in 54 days, machines needed is
(a) 42
(b) 49
(c) 50
(d) 63

Answer: B

Question. Which pair is in inverse proportion?
(a) Speed and time
(b) Distance and petrol
(c) Items and total cost
(d) Pages and reading time

Answer: A

Question. x values are 30, 90, 150. y values are 15, 5, 3. This relation is
(a) Direct
(b) Inverse
(c) No relation
(d) Linear

Answer: B

Question. HCF is used to find the
(a) Biggest ratio
(b) Simplest form of ratio
(c) Sum of terms
(d) Angle

Answer: B