Directions (): Bar graph given below shows pens sold by a retailor on five different days. Study the data carefully and answer the following questions.
Pen sold on different days
Out of the total pens sold on Thursday,20% are blue ink pen. Out of remaining 25% are red ink pen and remaining are black in pen. Find total number of blue and black in pen. Find total no. of blue and black ink pen sold on Thursday?
Explanation:
Sale of blue ink pen on Thursday=45× 20/100=9
Sale of Red ink pen on Thursday=(45−9)×25/100=9
Sale of Black ink pen on Thursday=(45−9)×75/100=27
Required sum=9+27=36
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By: Munesh Kumari