Aman lends 50% of his sum of money at 17% per annum, 40% of rest at 12% per annum and the rest at 15% per annum rate of interest. What would be the annual rate of interest, if the interest is calculated on the whole sum?

Consider the following events in the geological history of India:

1. Formation of Gondwana coal

2. Formation of Himalayas

Consider the following regions of India:

1.  Western Ghats

2.  Aravali Hills

3.  Eastern Himalayas

Consider the following statements:

1.  Rajmahal highlands consist of lava flow deposits.

Consider the following statements The South-West monsoon originates in India due to:

1. low pressure in the Punjab plain.

Consider the following statements:

1. The La Nina is the “cool phase” of El Nino-Southern Oscillation (ENSO).

With which one of the following countries, India shares maximum length of the border?

Arrange the following North-Eastern hills in order starting from North to South:

1. Lushai Hills

2. Manipur Hills

The Deccan trap was formed by the: 

Consider the following statements regarding Brahmaputra river:

1. It is known as Yarlung in China.

Consider the following statements regarding International borders:

1. Mizoram and Nagaland share a border with Myanmar only.