The average height of 5 boys is 175 cm A sixth boy joined the group and the average height of all th...........

Quantitative Aptitude (CGL) Average

The average height of 5 boys is 175 cm. A sixth boy joined the group and the average height of all the boys in the group now

increased by 1 cm. The height of the sixth boy is:

This questions was previously asked in

SSC CGL 5th March 2020 Shift-3

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180 cm

181 cm

175 cm

179 cm

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Explanation:

The average height of 5 boys = 175 cm
Average = sum of all terms/number of terms
Sum of the height of 5 boys = 175 5 = 875
Average height after joining of 6th boys = 175 + 1 = 176
Sum of the height of 6 boys = 176 6 = 1056
Height of 6th boy = 1056 - 875 = 181 cm

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