Question

please solve this question no. 57.

Answer 1

Now the number is 5a3b

we have to place numbers from 0 to 9 in place of a and b to make it a 4 digit number.

the given conditions are a=b³ ,try to find out the pairs between 0 to 9 in which if we take a number "b" then the other number will be b³.The numbers cant go beyond 9.

Possible Pairs:

(1,1) (8,2)

Now second condition is a>b, So,in the above pairs chose the pair in which a is greater than b.

Pair:

(8,2)

Number formed=5832

Now solve 5832 - ∛5832 = 5832 - 18 = 5814 answer

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