Question

what number is its own reciprocal​

Answer 1

Answer:

1 and 1 is it's own reciprocal

Answer 2

let the salary before increment = x

increment = 20 % of x

=> 20 /100 × x

=> x/5

=> given that if his new salary is rs. 30600

=> the new salary is also = x + x/5( the increment in the salary )

=> 6x/5 = 30600

=> 6 x = 30600× 5

=> x = 30600×5/6

x = 25,500 ( ans)

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