meena went to a bank to withdraw Rs.2000 .she asked the cashier to give her Rs.50 and Rs.100 notes only .meena got 25 notes in all . find how many notes of Rs.50 and Rs.100 she received .
Answers
Answer:
there are 10 notes of 100 and 20 notes of 50
50×20=1000
100×10=1000
now,1000+1000=2000
Answer:
dweejareddy avatar
dweejareddy
04.10.2014
Math
Secondary School
+5 pts
Answered
Meena went to a bank to withdraw Rs.2000. She asked the cashier to give Rs. 50 and Rs. 100 notes only . Meena got 25 notes in all . Find how many notes of Rs.50 and Rs.100 she received.
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TPS
TPSBrainly Master
Let no. of Rs. 50 notes = x
no. of Rs. 100 notes = y
Total notes = 25
⇒ x + y = 25
⇒ x = 25-y
total amount only in Rs. 50 notes = 50x
total amount only in Rs. 100 notes = 100y
Total amount = 2000
⇒ 50x + 100y = 2000
⇒50(25-y) + 100y = 2000
⇒50×25 - 50y + 100y = 2000
⇒1250 +50 y = 2000
⇒ 50y = 2000-1250 = 750
⇒ y = 750/50 = 15
x = 25-15 = 10
No. of Rs. 50 notes = 10
No. of Rs. 100 notes = 15
Step-by-step explanation: Just Try to understand