Direction : What should come in place of the question (?) in the following question.

15  34    20   ?   25    43  30

Direction (66-70): What should come in place of the question mark(?) in the following number series?

10    11    13    21    69    ?

Direction (66-70): What should come in place of the question mark(?) in the following number series?

4    6    14    44  ?   892

Direction (66-70): What should come in place of the question mark(?) in the following number series?

12664   34    20  14 ?

Area of a rectangle is equal to the area of a circle whose radius is 14 cm. If the breadth of the rectangle is 22 cm, what is its length?

Cost of fencing a circular plot at the rate of Rs.15 per m is Rs.3300. what will be the cost of flooring the plot at the rate of Rs.100 per square metre?

The diameter of a circle is equal to the perimeter of a square whose area is 3136 sq cm. What is the circumference of the circle?

A dealer bought an item at 10% discount on its original price. He sold it  at 35 % more than the original price. What percentage profit did he get?