ranjana's mother gave her 245 rs for buying New Year cards. If she got some 10-rupee cards, 2/3 as many 5 rupee cards, and 1/5 as many 15-rupee cards, how many of each kind did she buy?
Answers
Answered by
37
She bought:10 rupee cards: x
5 rupee cards: 2/3 x
15 rupee cards:1/5 x
So the equation is10x + 5*(2/3 x) + 15(1/5 x) = 245
So
x = 15
So
She bought:10 rupee cards: 15
5 rupee cards: 10
15 rupee cards:3
5 rupee cards: 2/3 x
15 rupee cards:1/5 x
So the equation is10x + 5*(2/3 x) + 15(1/5 x) = 245
So
x = 15
So
She bought:10 rupee cards: 15
5 rupee cards: 10
15 rupee cards:3
parthawasthiyo4:
How is the no. of 10 rupee cards be 15?
Answered by
11
let no.of cards =x
according to question
10*x+2/3*x*5+1/5*x*5=245
x=15
so , ranjana purchased 10 rupee card=15
ranjana purchased 5 rupee card= 10
ranjana purchased 15 rupee card= 3
according to question
10*x+2/3*x*5+1/5*x*5=245
x=15
so , ranjana purchased 10 rupee card=15
ranjana purchased 5 rupee card= 10
ranjana purchased 15 rupee card= 3
Can you write the equation how 10-rupee cards number is equal to 15?
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