Question

if 3/5 is added to twice the reciprocal of a no., the result is 1. find the no.

Answer 1

Let n = the number

(3/5) + 2(1/n) = 1

(3/5) + (2/n) = 1

5n * (3/5) + (2/n) * 5n = 1 * 5n

3n + 10 = 5n

10 = 5n - 3n

10 = 2n

10/2 = n

5 = n

Done!

Answer 2

3/5+2x=1   ,   2x=1-3/5      ,      2x=2/5      ,x=2/10     ,    x =1/5        we find reciprocal so number is only 5