Question

Meera and Dhara have 12 and 8 coins respectively each of radius 3.5 cm and thickness 0.5 cm. They place their coins one above the other to form solid cylinders

Based on the above information, answer the following questions. (5 M)


(i) Curved surface area of the cylinder made by Meera is


(a) 144 cm2


(b) 132 cm2


(c) 154 cm2


(d) 142 cm2


(ii) The ratio of curved surface area of the cylinders made by Meera and Dhara is


(a) 2: 5 (b) 3: 2 (c) 1: 2 (d) 2: 7

(iii) The volume of the cylinder made by Dhara is


(a) 154 cm3


(b) 144 cm3


(c) 132 cm3


(d) 142 cm3


(iv) The ratio of the volume of the cylinders made by Meera and Dhara is


(a) 1:2

(b) 2: 5

(c) 3: 2

(d) 4: 3


(v) When two coins are shifted from Meeras cylinder to Dhara's cylinder, then


(a) Volume of two cylinder become equal


(b) Volume of Meera's cylinder> Volume of Dharas cylinder


(c) Volume of Dhara's cylinder> Volume of Meeras cylinder


(d) None of these​

Answer 1

Answer:

1) b

2)b

3) a

4)c

5)b

Step-by-step explanation:

PLEASE MAKE BRINLIEST

Answer 2

The answer is b. 132