Ranjana's mother gave her Rs.245 for buying a New Year card.If she got some 10-rupees cards, 32 as many 5-rupee cards and 51 as many 15-rupee cards. How many of each kind did she buy in order of 10 rupees, 5 rupees, and 15 rupee cards?
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Let She bought: 10Rscards=x 5Rscards=32x 15Rscards=51x Totalmoneyshewashaving=Rs245 Accordingtoquestion 10(x)+5(32x)+15(51x)=245 ⇒10x+310x+3x=245 ⇒13x+310x=245 ⇒339x+10x=245 ⇒49x=735 x=15 Hence Shebought 10Rscards=15 5Rscards=10 15Rscards=3