Question
5 years ago, the average age of a family of five persons
was 30 years. In between these 5 years the family adopted a girl. Now at present the average age of the family is same as it was 5 years ago. Find the present age of the girl.Solution
Sum of the present age of the family excluding girl = 5 x (30 + 5) = 175 years Sum of the present age of the family including girl = 6 x 30 = 180 years Present age of the girl = 180 – 175 = 5 years
Active packaging systems use oxygen scavengers while packaging grated cheese to:
The success of 'green revolution' during 1960s was only possible due to the dwarfing gene. Dwarfing gene in rice is ……………………..
...Which of the following statements is INCORRECT with respect to Algal toxins in shellfish and fish in oceans?
The effective post-emergence control of Ageratum houstonianum can be achieved with
What type of demand occurs when a small change in price leads to a significantly larger change in quantity demanded?
Curled toe disease in poultry is caused by the deficiency of which vitamin?
Amount of water in 5 ha cm will be
The largest family in order Coleoptera is ____
Okta scales ranges from
Conversion factor from P to P2O5 is
