The students in three classes are in the ratio 2 : 3 : 5. If 20 students are increased in each class, the ratio changes to 4 : 5 : 7 . originally the total number of students was: 

A shopkeeper gives 12 percent additional discount along with a discount of 20 percent on the marked price of a radio. If the selling price of the radio is ₹ 704, the marked price is  

The expenses on rice, fish and oil of a family are in the ratio 12 : 17 : 3. The price of these articles are increased by 20 % , 30 % and 50 % respectively. The total expenses of family on these articles are increased by: 

Earth is divided into ______ longitudinal regions.

To whom was Bal Gangadhar Tilak referred to as the "Diamond of India"?

Transformer works on which principle?

Which Country awards Nobel Prize?

The "Sun Temple" of Konark is in the State of