The average of six integers is 48. The average of the first five integers is 70% of the sixth integer. The sixth integer is.

64 62 68 58

64

Lets assume 6th integer be x \(\frac{Sum\:of\:first\:5\:integers}{5}\) = 0.70x Sum of 1st 5 integers = 3.5x Average of 6 integers = 48 \(\frac{(Sum\:of\:5\:integers\:+\:6th\:integer )}{6}\) = 48 ⇒ (3.5x + x) = 48 x 6 ⇒ 4.5x = 288 ⇒ x = 64