The mean proportional between 6 and another number is 30. What is that number ?
Answer & explanation
Correct answer: option 1
Mean proportion of a and b = √ab,
⇒ √6x = 30,
Squaring both sides,
⇒ 6x = 900,
⇒ x = 150.
The mean proportional between 6 and another number is 30. What is that number ?
Correct answer: option 1
Mean proportion of a and b = √ab,
⇒ √6x = 30,
Squaring both sides,
⇒ 6x = 900,
⇒ x = 150.