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We discuss whether the numbers of x-ray and radio-produced electrons in solar flares are the same. The number of radio-produced electrons that is estimated with an inhomogeneous source increases by a factor of 103 - 104because of the inhomogeneity and the decreased magnetic field (B ＝ 120 G) of the radio source. The number of x-ray-produced electrons decreases by a factor of 10 - 30 due to the increase of the number density of ions (3 × 1010 cm-3). These are the reasons why the number of radio-produced electrons is approximately equal tothat of x-ray-produced electrons in the 1981 April 27 burst.