CBSE Class 8 Mathematics Proportional Reasoning 2 MCQs Set 08

Question. Food for 80 students for 15 days. If 20 more join, total students?
(a) 80
(b) 100
(c) 60
(d) 20

Answer: B

Question. Viswanath uses 6 cups rice and 3 cups dal. Puneet uses 4 cups rice and 2 cups dal. Their idlis will taste
(a) Different
(b) Very bad
(c) Same
(d) Salty

Answer: C

Question. RF shows the ratio between map distance and
(a) Road distance
(b) Actual ground distance
(c) Sky distance
(d) Speed

Answer: B

Question. Viswanath spice mix has 8 coriander, 4 chilli, 2 toor dal, 1 methi. This ratio is
(a) 1:2:4:8
(b) 8:4:2:1
(c) 4:8:2:1
(d) 8:1:4:2

Answer: B

Question. Ratio 12 : 10 : 8 : 6 : 4 simplified by HCF 2 becomes
(a) 6 : 5 : 4 : 3 : 2
(b) 12 : 10 : 8 : 6 : 4
(c) 1 : 1 : 1 : 1 : 1
(d) 2 : 2 : 2 : 2 : 2

Answer: A

Question. Angle for Grade E (2 parts) is
(a) 18
(b) 36
(c) 54
(d) 72

Answer: B

Question. Lucknow to Kanpur trip. If speed goes from 30 to 60, speed is
(a) Halved
(b) Doubled
(c) Tripled
(d) Same

Answer: B

Question. Smallest angle in triangle with ratio 1:3:5 is
(a) 10 degrees
(b) 20 degrees
(c) 60 degrees
(d) 100 degrees

Answer: B

Question. Number of periods and duration of each period are in
(a) Inverse proportion
(b) Direct proportion
(c) No relation
(d) Simple ratio

Answer: A

Question. Water lasts 20 families for 6 days. If 10 more families join, total families is
(a) 10
(b) 20
(c) 30
(d) 40

Answer: C

Question. In inverse proportion table, if x is 16 and y is 9. If x is 36, y is
(a) 4
(b) 9
(c) 18
(d) 1

Answer: A

Question. Total angle in any circle is
(a) 180 degrees
(b) 270 degrees
(c) 360 degrees
(d) 100 degrees

Answer: C

Question. Simplified form of 12 : 10 : 8 : 6 : 4 is
(a) 6 : 5 : 4 : 3 : 2
(b) 1 : 2 : 3 : 4 : 5
(c) 5 : 4 : 3 : 2 : 1
(d) 2 : 2 : 2 : 2 : 2

Answer: A

Question. Chairs are kept in 25 rows with 12 chairs in each. Total chairs is
(a) 25
(b) 12
(c) 300
(d) 100

Answer: C

Question. Small pump fills tank in 3 hours. Large pump fills in 2 hours. Together they fill
(a) Faster
(b) Slower
(c) Same time
(d) Never

Answer: A

Question. Sum of parts in 2 : 3 : 5 ratio is
(a) 5
(b) 8
(c) 10
(d) 15

Answer: C

Question. To keep taste same in a recipe, all ingredients must change by
(a) Same factor
(b) Different factor
(c) Only addition
(d) Only subtraction

Answer: A

Question. Rule of Three finds the fourth quantity when
(a) One is given
(b) Two are given
(c) Three are given
(d) None are given

Answer: C

Question. If chilli becomes half, coriander spoons will be
(a) 8
(b) 6
(c) 4
(d) 2

Answer: C

Question. For purple paint, Red is 2 parts. So she needs how many litres?
(a) 2 litres
(b) 4 litres
(c) 6 litres
(d) 10 litres

Answer: B