Answer :

Let the principal (P) = ₹100

Rate of interest (R) = 100% and time period (T) = nyr

Then, simple interest = = = ₹20

We know that,

A = P

= 100 × = ₹121

∴ compound interest, CI = A – P = ₹121 – ₹100 = ₹21

So, C > S

Hence, option (a) is correct.

In option (b), It says either c>s or c = s. Therefore, we can see that according to assumption it is not correct

In option (c), It says either c = s or c<s. Therefore, we can see that according to assumption it is not correct

In option (d), It says either c<s. Therefore, we can see that according to assumption it is not correct

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