Math, asked by ashrithagandhapu, 23 hours ago

Shuruchi has received total of rupees 780
as currency note in the denomination of 10,20 &
50.The ratio of number of 50 notes and 10 rupees
notes is 3:2.If she received total 32 notes
Question:4) The ratio of number of 50
rupees notes to 20 rupees notes
A)
7:5
B)
8:11
C)
8:3
D)
3:11​

Answers

Answered by arunashamala22
0

Step-by-step explanation:

I think option is not there answer is 5:2

Answered by amitnrw
0

Given :  Shuruchi has received total of rupees 780 as currency note in the denomination of 10,20 & 50.

The ratio of number of 50 notes and 10 rupees notes is 3:2.

She received total 32 notes

To Find : The ratio of number of 50 rupees notes to 20 rupees notes

A) 7:5

B) 8:11

C) 8:3

D) 3:11​

Solution:

The ratio of number of 50 notes and 10 rupees notes is 3:2.

50 Rs notes = 3x

10 Rs Notes = 2x

20 Rs notes = y

Value = 50 * 3x + 10 * 2x + 20y  = 780

=> 15x  + 2x  + 2y = 78

=> 17x  + 2y  = 78

=> 17 x = 2(39  - y)

x = 2  y = 22

x = 4   y = 5

Two possible cases:

           50   10      20  Total

Notes  6     4        22       32

Value 300  40    440      780

Notes  12 ,  8       5       25

Value 600  80   100    780

1st case is correct

The ratio of number of 50 rupees notes to 20 rupees notes

6 : 22 = 3 : 11

correct option D) 3:11​

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