1 Answers
Option 3 : Quantity 3 > Quantity 1 > Quantity 2
Quantity 1:
Let the side of square 1 be a unit
Area = a × a unit.
Now, side of square formed by joining midpoints of square 1 will be half of diagonal of square (sides joining two midpoints of a triangle is parallel and half of third side)
Side of square 2 = (Diagonal 1)/2 = √2 a/2 = a/√2
Area of square 2 = × = a2/2
Ratio = 2 : 1
Hence area will get divided by 2 every time,
Area of square 5 = 200/24 = 12.5 m2
Quantity 2:
Speed in 1st hour = 10 km/hr
Distance in 1st hour = 10 km
Speed in second hour = 20 km/hr
Distance in second hour = 20 km
Distance travelled will increase every hour in the same manner,
Total distance = 10 + 20 + 30 + .... = 550
let time be Y hours
/2 = 550/10 (sum of first n terms)
Y (Y + 1) = 110
Y = 10
Quantity 3:
Volume of cone = Volume of cylinder
(π × r2 × h)/3 = π × R2 × H
(39.3 × 142)/3 = (142 × H)
13.1 × 142 = 142 × H
H = 13.1 cm
Hence, Quantity 3 > Quantity 1 > Quantity 2