Question

4. A sum of Rs 1000 is in the form of
denominations of Rs 10 and Rs 20. If
the total number of notes is 60, find
the number of notes of each type.
​

Answer 1

Answer:

et R10 be the number of RS 10 notes and R50 be the number of RS 50 notes

:

1) R10 + R50 = 60

:

2) (10 * R10) + (50 * R50) = RS 1000

:

solve equation 1 for R10 and substitute for R10 in equation 2

:

R10 = 60 - R50

:

(10 * (60 - R50) + (50 * R50) = RS 1000

:

600 - 10R50 + 50R50 = 1000

:

40R50 = 400

:

R50 = 10

R10 = 60 - 10 = 50

:

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There are 10 RS 10 notes and 50 RS 50 notes

:

check answer

:

(50 * RS 10) + (10 * RS 50) = RS 1000

:

500 RS + 500 RS = RS 1000

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Correct answer is 50 RS 10 notes and 10 RS 50 notes

Answer 2

Answer:hey mate your answer is 20,40.may it help then mark as BRAINLIEST..

explanation: so, let's check it once first notes of rs. 10 = 10×20 = Rs. 200second notes of rs. 20 =20×40 = Rs. 800SO, NOW 1ST+2ND = 200+800 =rs. 1000

HENCE PROVED