Question
Currently, the average age of Sam, Sarah, and Seth is 32
years, whereas the average age of Sam and Sarah is 36 years. Calculate the age of Sarah after eight years if the present age of Seth is 25% less than the current age of Sam.Solution
ATQ, Sum of the current ages of Sam, Sarah, and Seth = 3 × 32 = 96 years. Sum of the current ages of Sam and Sarah = 2 × 36 = 72 years. Current age of Seth = 96 - 72 = 24 years. Sam's current age, given Seth's age is 25% less: Sam's age = 24/0.75 = 32 yrs Therefore: Sarah's age = 72-32 = 40 yrs Sarah's age after eight years = 40 + 8 = 48 years.
Sucrose, lactose and maltose are examples of-
Which part of alimentary canal of poultry is known as muscular stomach?Â
Which of the following enzyme is not involved in the process of genetic engineering?
Incidence of panama disease increases in
The photorespiration process takes place in which of the following organelles?Â
Extrachromosomal DNA can be found inÂ
Which of the following is an extra early maturing variety of pigeon pea?
Which of the following crop is used for flax and oil both?
Which of the following property of soil is not influenced by tillage operations?
Which of the following crop is a source methane and nitrous oxide emission into the atmosphere?