एक दुकानदार 24 पेनों पर 6 पेन अतिरिक्त मुफ्त मे देता है, तो 40% की छूट देने के लिये उसे 42 पेनों की बिकृी पर कितने पेन मुफ्त मे देने चाहिए?
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Answer:
12
Step-by-step explanation:
total number of pens he sold initially
= 24+6 = 30
if the same number of pens he need to sold at 40% discount. then required extra pen that he need to give away at 40% discount to sold 42 pens
= 40% of 30 = 12
( 30+ 12 = 42 satisfies here)
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