यदि किसी संखया के अंकाे का याेेेग 15 है तथा उस संखया में 9 जोड दे तो
यदि किसी संखया के अंकाे का याेेेग 15 है तथा उस संखया में 9 जोड दे तो उस संखया के अंक परसपर बदल जाते है। तो संखया बताओ।
- Ajay
- 10 Apr
- 3 Answers
3 Answers
3 Answers
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780Modal content
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Let digits of number be x and y Then x+y=15 (given) and 10x+y+9=10y+x or 9x-9y=-9 or x-y=-1 Solving these 2 equation we get x=7 and y=8 So number is 10x+y=10*7+8= 78 So answer is 780Modal content
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