A triangle has an area of 240 cm². If the base is increased by 20% and the corresponding height decreased by 10%, find the percentage change in the area.
A.2%
B.−4%
C.8%✓ Correct
D.4%
Explanation
New base = 1.2× old, new height = 0.9× old; new area = 1.2×0.9 = 1.08 times old area, so increase = 8%.
💡 Practice unlimited SSC MTS PYQs + AI-tracked progress on each topic. Sign up free →