A) 33.3 cm
B) 66.67cm
C) 25 cm
D) 50 cm
Correct Answer: D
Solution :
\[S=\left( \frac{100-l}{l} \right).R\] Initially, \[30=\left( \frac{100-l}{l} \right)\times 10\Rightarrow l=25cm\] Finally, \[10=\left( \frac{100-l}{l} \right)\times 30\Rightarrow l=75cm\] So, shift = 50cm.You need to login to perform this action.
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