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 Class 8 Mathematics questions and answers on percentage increase and decrease

A farmer had 120 animals of which 50% were cattle, 30% goats and the rest sheep. He increased the number of goats by 25%, sheep by 50% and decreased the number of cattle by 20%. How many animals did he finally have?
A. 186
B. 153
C. 135
D. 129

 (8m 50s)
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