Question

The circumference of a circle exceeds its diameter by 120 cm find the diameter and the circumference of the circle

Answer 1

$c = d + 120 \\ \pi \: d = d + 120 \\ \frac{22}{7} d = d + 120 \\ 22d = 7d + 840 \\ 15d = 840 \\ d = 56cm \\ c = \frac{22}{7} \times 56 = 22 \times 8 = 176cm$