Question

If 3 quarter dozen of donuts costs ₹ 90. Then what is the prize of one dozen of donuts?

• A. ₹60
• B. ₹120
• C. ₹150
• D. ₹240

Answer 1

The correct option is B ₹120

3 quarter dozen of donuts cost ₹90
3 quarters means $\frac{3}{4}$.
So, 1 quarter dozen of donuts that is $\frac{1}{4}$ dozen costs $90÷3=₹30$.

But, 1 whole has 4 quarters.
So, a dozen of donuts costs $₹30\times 4=₹120$