Math, asked by sarabi, 2 months ago

दो अंकों की किसी संख्या के अंकों का योग 10 है। यदि संख्या के अंकों को उलटकर लिखा जाता है, तो नयी संख्या पुरानी संख्या से 36 कम हो जाती है, वह संख्या क्या है ?

Answers

Answered by Anonymous
17

हल :

माना कि इकाई अंक x और दहाई अंक y है |

अत:, संख्या = 10y + x

अंक उलटने पर संख्या = 10x + y

अब प्रश्न से, x + y = 10 - (1)

और (10y + x)-(10x + y) = 36

या, 10y+x-10x-y=36

9y-9x=36

∴ y - x = 36÷9 = 4 -(2)

अतः, समी. (i) तथा (ii) से -

y + x = 10

y - x = 4

2y = 14

∴ y = 7

अब समीकरण (i) में y का मान रखने पर-

x + y = 10

या,x+7-10

या, x =10-7=3

∴ संख्या = 10y+x= 10x7+3

= 70+3=73; उत्तर।

Answered by ItzDazzingBoy
9

Answer:

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