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The sum of two numbers is 20. Find the numbers if their product is 91 . Please the answer was According to Class- 6 |
| Answer» HAT ☆ Sum of two NUMBERS is 20So, Let we assume that ☆ First number is xand ☆ Second number is 20 - xAccording to statement, ☆ Product of two numbers = 91Now we have to SPLIT the middle terms to factorize this QUADRATIC equation. We have to split 91 in such a way that on adding we get ( - 20 ) and on multiply we get 91. So such pair is ( - 13 ) and ( - 7 ). So, splitting of middle terms is represented as When x = 13, so Second number = 20 - 13 = 7and When x = 7, so Second number = 20 - 7 = 13Hence, Two numbers are 13 and 7. | |