meena went to a bank to withdraw 2000. she asked the cashier to give her 50 and 100 notes only. meena got 25 notes in all. find how many notes of 50 and 100 she received.

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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 Rs 50 and Rs 100 she received.

Click here👆to get an answer to your question ✍️ 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 Rs 50 and Rs 100 she received.

Question

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 Rs 50 and Rs 100 she received.

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Updated on : 2022-09-05

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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. Maths Q&A

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. Get the answer to this question and access a vast question bank that is tailored for students.

Byju's Answer Standard VII Mathematics Time and Work Meena went to... Question

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. Open in App Solution

Step 1. Form the linear equation according to the given information.

Given that the Meena withdraws

Rs.2000 .

Consider that the number of

Rs.50 notes is x and, The number of Rs.100

notes is

y

And total number of notes are

25 . Therefore,

x+y=25 ...(1)50x+100y=2000 ...(2)

Step 2. Solve the obtained equation.

Multiply equation (1) with 50 : 50x+50y=1250 ...(3) Subtract equations (3) from (2) :

50x+100y-(50x+50y)=2000-1250

⇒ 100y-50y=750 ⇒ 50y=750 ⇒ y=15 Substitute y=15 in equation (1) to find x : x+15=25 ⇒ x=25-15 ⇒ x=10

Hence Meena receives

x=10 notes of Rs.50 And y=15 notes of Rs.100

Hence, she received

10

notes of

Rs.50

and

15

notes of

Rs.100 . Suggest Corrections 26

SIMILAR QUESTIONS

Q. 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 ?Q.

Sheela went to a bank to withdraw ₹ 2000. She asked the cashier to give her ₹ 50 and ₹ 100 notes only. Meena got 25 notes in all. Find how many notes of ₹ 50 and ₹ 100 she received.

Q.

Sheela went to a bank to withdraw ₹ 2000. She asked the cashier to give her ₹ 50 and ₹ 100 notes only. Meena got 25 notes in all. Find how many notes of ₹ 50 and ₹ 100 she received.

Q. 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 Rs 50 and Rs 100 she received.Q. Meena went to a bank to withdraw

R s 2000

. She asked the cashier to give her

R s 50 and R s 100

notes only. Meena got

25

notes in all. Find how many notes

R s 50 and R s 100 she received. View More RELATED VIDEOS

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स्रोत : byjus.com

Meena went to a bank to withdraw Rs 2000. She

Ex 3.4, 2 Form the pair of linear equations in the following problems, and find their solutions (if they exist) by the elimination method : (iv) 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 note

Check sibling questions

Ex 3.4, 2 (iv) - Chapter 3 Class 10 Pair of Linear Equations in Two Variables (Term 1)

Last updated at March 16, 2023 by Teachoo

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Transcript

Ex 3.4, 2 Form the pair of linear equations in the following problems, and find their solutions (if they exist) by the elimination method : (iv) 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. Let Number of Rs. 50 notes = x & Number of Rs. 100 notes = y Given that Total notes is 25 (Number of Rs 50 notes) + (Number of Rs 100 notes) = 25 x + y = 25 Also, given that Total amount withdrawn = 2000 Thus, 50x + 100y = 2000 50 (x + 2y) = 2000 x + 2y = 2000/50 x + 2y = 40 Hence, our equations are x + y = 25 …(1) x + 2y = 40 …(2) Using elimination method −y = −15 y = 15 Putting y = 15 in equation (1) x + y = 25 x + 15 = 25 x = 25 – 15 x = 10 So, x = 10 & y = 15 are the solution of our equations Therefore, Number of Rs 50 notes = x = 10 Number of Rs 100 notes = y = 15

Next: Ex 3.4, 2 (v) Important →

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

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