ranjana's mother gave her Rs 245 rupees for buying new year cards. if she got 10 rupees Cars 2 by 3 as many 5 rupees cards and one by 5 as many 15 rupee cards how many of each kind did she buy?
ranjana's mother gave her Rs 245 rupees for buying new year cards. if she got 10 rupees Cars 2 by 3 as many 5 rupees cards and one by 5 as many 15 rupee cards how many of each kind did she buy?
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Let the no. of 5 rupees cards be ⅔ x
Let the no. of 15 rupees cards be1/5x
A/Q
10x+5×⅔x+15×1/5x=Rs 245
=>150+50x+45x÷15=Rs 245
=>245x÷15=Rs 245
=>245x=Rs 245×15
=>x =245×15÷245
=>x =15
No. of 10 rupees cards = 15
No. of 5 rupees cards=2/3×15=10
No. of 15 rupees cards = 1/5×15=3
Let the no. of 10 rupees cards be x
Let the no. of 5 rupees cards be ⅔ x
Let the no. of 15 rupees cards be1/5x
A/Q
10x+5×⅔x+15×1/5x=Rs 245
=>150+50x+45x÷15=Rs 245
=>245x÷15=Rs 245
=>245x=Rs 245×15
=>x =245×15÷245
=>x =15
No. of 10 rupees cards = 15
No. of 5 rupees cards=2/3×15=10
No. of 15 rupees cards = 1/5×15=3