Part C - Elementary Mathematics
In a fraction, the numerator is increased by 40% and the denominator is diminished by 20%. What fraction of the original is the new fraction?
\( \frac{4}{7} \)
\( \frac{2}{5} \)
\( \frac{3}{4} \)
\( \frac{7}{4} \)
A motor car goes to a place at a speed of 23 km/h and returns at a speed of 33 km/h. The average speed (in km/h) of the motor car in the entire journey is:
27 \( \frac{3}{28} \)
29 \( \frac{3}{31} \)
28 \( \frac{2}{13} \)
30 \( \frac{1}{12} \)
100 guavas were bought at ₹1,210 per hundred and were sold at a profit of ₹965. Find the selling price (in ₹) per dozen of guavas.