The avergae age of a family of three members (mother, father and son) is 44 years. After the son's marriage, the average age of the family becomes 39 years. What is the age of the daughter in law? SSC MTS 2021-05.09.2023-2
The average of the two numbers is 48. If 3 is added to the smaller number, then the ratio between them is 11 : 20. Find the larger number. (Round up to two decimal places).
SSC MTS 2021-05.09.2023-3
In a group of people, 70% are men and 30% are women. The average age of the men is 50 years and that of the women is 40 years. Find the average age of all the members in the group (in years) SSC MTS 2021-05.09.2023-3
The average weight of 20 students of a class was 30.5 kg. After 6 new students joined the class, its average weight increased by 2 kg. Find the average weight of the 6 new students who joined the class (rounded off to one decimal place). SSC MTS 2021-06.09.2023-1