Elitmus Exam Numerical Ability Arithmetic

If a number consists of each digit of each 1 to 9 then the difference of its sums of alternate digits.
a)0 b)11 c)22 d)33

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Elitmus Other Question

if the number of 2 rs, 5 rs and 10 rs coins are 500 and total sum of money is 3130.when the 5 rs and 10 rs coins are exchanged .total sum is decreased by 300.what are the no of coin of 2 rs .

option a 200 b 210 c 140
If a right angle triangle is consists of any 3 consecutive numbers then its one side will be
a) 360 b) 361 c)362 d) none of the above