IN an aging person ,there is a

The average age of a group of 8 persons was 14 years.A person with age 28 years left the group and a new person with age 16 years joined the group.Find the new average age of the group.

A hearing test is conducted on an aged person. It is found that her threshold of hearing is 20 decibels at 1 kHz and it rises linearly with frequency to 60 decibels at 9 kHz. The minimum intensity of sound that the person can hear at 5 kHz is-

In old age persons defects in kidney is due to:

What will you do if you find an aged person who has lost his road orientation ?

Why do aged person need spectacles for reading ?

The average age of 8 persons is increased by 2 years, when one of them, whose age is 24 years is replaced by a new persons. The age of the new person is

Immune response of old age person becomes weak due to the degeneratio of following gland