Latest general Aptitude Question SOLUTION: Consider a number 235, where last digit is the sum of first two digits i.e. 2 + 3 = 5. How many such 3-digit numbers are there?

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(#M40000173) GENERAL question Keep an EYE

Consider a number 235, where last digit is the sum of first two digits i.e. 2 + 3 = 5.
How many such 3-digit numbers are there?

Asked In general Naveen (13 years ago)

Solved Karthik Pandiyan Read Solution (5)

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Ankit  (12 years ago)

its a very long it follow a series -------
when last digit is 1----- 101------------------------------------------1
when last digit is 2-----202,112--------------------------------------+2
when last digit is 3-----303,213,123,---------------------------------+3
when last digit is 4-----404,134,314,224,-----------------------------+4
so series as follow 1+2+3+4+5+6+7+8+9=9/2(1+9)=45

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Karthik Pandiyan  (13 years ago)

Ans: 45
101,112,123,134,145,156,167,178,189,202,213,224,235,246,257,268,279,303,314,325,,336,347,358,369,404,415,426,437,448,459,505,516,527,538,549,606,617,628,639,707,718,729,808,819,909

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navati  (13 years ago)

45
there are 9 such numbers between 100 t0 200 and 8-(201-300),7-(301-400)...like this total 45

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Rahul Kumar Saini  (13 years ago)

45

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pavan kumar  (12 years ago)

it is undefind bcz we have lot of num like that

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