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Seven times a two-digit number is equal ...

Seven times a two-digit number is equal to four times the number obtained by reversing the digits. If the difference between the digits is 3. Find the number.

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NAGEEN PRAKASHAN ENGLISH-LINEAR EQUATIONS IN TWO VARIABLES -Exercise 3e
  1. In a two digit number, the units digit is twice the tens digit. If 27 ...

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  2. A two digit number is obtained by either multiplying the sum of the di...

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  3. Seven times a two-digit number is equal to four times the number ob...

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  4. A fraction becomes 4/5, if 1 is added to both numerator and denomin...

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  5. A fraction is such that if the numerator is multiplied by 3 and the ...

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  6. If the denominator of a fraction is added to its numerator and the nu...

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  7. 4 chairs and 3 tables cost Rs 2100 and 5 chairs and 2 tables cost R...

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  8. The cost of 3 oranges and 12 apples is Rs. 9.60 and the cost of 5 oran...

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  9. From Delhi station, if we buy 2 tickets for station A and 3 tickets fo...

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  10. A railway half ticket costs half the full fare and the reservation ...

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  11. Point A and B are 90 km apart from each other on a highway. A car s...

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  12. in the triangle ABC , /A=x^@,/B=3x^@,/C=y^@. if 3y-5x=30 then prove th...

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  13. In a triangles ABC , angle A = x^(@) , angle B = (3x - 2) ^(@) and a...

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  14. The largest angle of a triangle is twice the sum of the other two. The...

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  15. In a cyclic quadrilateral A B C D , /A=(2x+4)o,\ \ /B=(y+3)o,\ \ /C...

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  16. If in a rectangle, the length is increased by 2 units and breadth is r...

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  17. The perimeter of a rectangle plot is 32 metres. If the length is incre...

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  18. The area of a rectangle remains the same if the length is increased...

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  19. A man went to a Bank with Rs. 1000. He asked the cashier to give him R...

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  20. Post cards costing 15 paise each and inland letters costing 75 paise e...

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