Pinky bought four books. The average price of these books is rupees 200 ,what is the price of one of these book
1 answer:
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<h3>Answer:</h3>
35
<h3>Step-by-step explanation:</h3>(-7) • (-5)
= 7 • 5
= 7 + 7 + 7 + 7 + 7
= 14 + 7 + 7 + 7
= 21 + 7 + 7
= 28 + 7
= 35