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A garden's length is (10\text{ m}) more than its breadth. If both length and breadth are increased by (5\text{ m}), the area increases by (350\text{ m}^2). What is the original breadth?एक बगीचे की लंबाई चौड़ाई से (10\text{ m}) अधिक है। यदि लंबाई और चौड़ाई दोनों (5\text{ m}) बढ़ा दी जाएँ, तो क्षेत्रफल (350\text{ m}^2) बढ़ जाता है। मूल चौड़ाई क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (27\text{ m})(27\text{ m})
Let breadth be (x), then increase is ((x+5)(x+15)-x(x+10)=350). This gives (10x+75=350), so (x=27.5), hence no listed option is exact.चौड़ाई (x) हो, तो वृद्धि ((x+5)(x+15)-x(x+10)=350)। इससे (10x+75=350), इसलिए (x=27.5), अतः दिए विकल्पों में कोई सही नहीं।
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