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Maths Puzzle
In a two-digit number, if unit digit exceeds its ten's digit by 2 and the product of the given number and the sum of its digits is equal to 144, then what is the number?
Read Solution (Total 3)
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- 24
24*(2+4)=24*6=144 - 12 years agoHelpfull: Yes(6) No(0)
- 24.
Let the 10's digit be x.Then the units digit will be x+2.
the number is 11x+2.
The sum of the digits will be 2x+2
(11x+2)(2x+2)=144
Solving the quadratic eqn we get x=2;so the number is 24. - 12 years agoHelpfull: Yes(3) No(1)
- Let consider the number is xy.
1---> y=x+2
so the combination of this condition is, 13, 24, 35,46, 57, 68, 79 .
2---> xy* (x+y) = 144.
24*(2+4) = 144 . - 10 years agoHelpfull: Yes(2) No(0)
self Other Question
Find the two digit number, such that the ratio is 7/4 of original number to the number formed by reversing the digits.
(1)get 24 by using 8,8,3,3 (2) get 45 by using 9,9,5,5 (3) get ans 42 by usisng 6,6,7,7 (4) get ans 12 by usisng 4,4,3,3 . USE THE ALL MATHEMATICAL SYMBALS REQUIRED. ALL ABOVE 4 PROBLEMS ARE UNIQUE FORMULA TO GET ANSWER.