RRB Group-D Model Paper 16 with answers for online practice

Given,
Time = 12 years
Formula:
SI = Prt/100
Calculation:
Let principal be 100x, then
SI = 100x × 60/100 = 60x
According to the question
60x = (100x × 12 × r)/100
⇒ r = 60/12
∴ r = 5%