average of 7numbers is39 and average of three of them is 27.find the average of the other four?
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the sum of 7 no. 7*39=273
the sum of 3 no. 3*27=81
then sum of 4 no. 273-81=192
then average of 4 no. 192/4=48
the sum of 3 no. 3*27=81
then sum of 4 no. 273-81=192
then average of 4 no. 192/4=48
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Step-by-step explanation:
-12×3+4x = 0
x = 9
average of 4no.s = 39+9 = 48
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