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A man has only 20 rupee notes and 50 rupee notes in his wallet. If he has15 notes in all totaling ₹ 510, how many notes of each kind does hehave? |
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Answer» Answer: 20 rupee note =8 and 50 rupee note =7 Step-by-step explanation: Let 20 and 50 rupee note be x and y respectively x+y=15 (EQUATION -1) 20x+50y=510 (EQ.2) ×=15-y(eq 1 by SOLVING ) put VALUE of x in second eq 20(15-y)+50y=510 300-20y+50y=510 300+30y=510 30y=510-300 3oy=210 y=210/30 y=7 Now put value of y in eq 1 then u will get x = 8 then no of 20 rupee note is 8 and 50 rupee note is 7 HOPE U GOT THE ANSWER IF U HAVE ANY DOUBT U CAN CONNECT ME |
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