Question

The difference between the circumference and diameter of a circular field is 15m. What is it's diameter?

Answer 1

7 is the answer .......

Answer 2

AS WE KNOW THAT circumference of circle =2πR

AND
DIAMETER=2R

GIVEN DIFFERENCE

2πR-2R=15

2×22/7 R-2R=15

44R-14R=15×7

30R=105

15(2R)=105

2R=105/15
2R=7
2R=D=7
HENCE DIAMETER (D)=7

HOPE IT HELPED!