What approximate value should come in place of question mark.
(1814 .9  ÷  121) x 35.78 ÷ 45.1023 = ? 

Four years ago, the respective ratio between the age of Ram and that of Sonu, was 4 : 9. Tina is ten years older than Ram. Tina is ten years younger than Sonu. What is Tina's present age? 

Abhay gave 30% of his money to Vijay, Vijay gave 2/3rd of what he received to his mother. Vijay's mother gave 5/8^th of the money she received from Vijay to the grocer. Vijay's mother is now left with Rs 600. How much money did Abhay have initially? 

Area of rectangle is 96 square meters. When the length of the same rectangle is increased by 6 metres and the breadth is decreased by 3 metres, then the area of rectangle decreases by 30 square metres. What is the perimeter of a square whose sides are equal to the length of the rectangle? 

The simple interest accrued on an amount of Rs 16500 at the end of 3 years is Rs. 4950. What would be the compound interest accrued on the same amount at the same rate in the same period? 

What will come in place of question mark ( ? ) in the following series?
656, 352, 200, 124, 86, ? 

What will come in place of question mark ( ? ) in the following series?
13, 25, 61, 121, 205, ? 

What will come in place of question mark (?) in the following series?
8, 10, 18, 44, 124, ?