Question : Magadha Mahajanapada was surrounded by rivers

Option 1: Ganga and Jhelum

Option 2: Ganga and Yamuna

Option 3: Ganga and Son

Option 4: Ganga and Ghaghara

Question : The iron mines in Jharkhand contributed to the rise of which ancient Indian kingdom?

Option 1: Kuru

Option 2: Magadha

Option 3: Kashi

Option 4: Kushan

Question : The curved surface area of a cylinder is five times the area of its base. Find the ratio of the radius and height of the cylinder.

Option 1: 2 : 3

Option 2: 3 : 5

Option 3: 2 : 5

Option 4: 3 : 4

Question : What is the sum of the first 20 terms of the following series?
$1 \times 2+2 \times 3+3 \times 4+4 \times 5+\ldots \ldots$

Option 1: 3160

Option 2: 2940

Option 3: 3240

Option 4: 3080

Question : Which river serves the largest cultivable area ?

Option 1: Ganga

Option 2: Saryu

Option 3: Godavari

Option 4: Krishna