Question
18 years ago the average age of a family of four members
was 45 years. Two children were born in that span of 18 years. The present average age of the family remained unchanged. Among the two children who were born in between the 18 years, if the older child at present is 12 years more than the younger one, what is the respective ratio between the present age of the older child and the present age of the younger child?Solution
18 years ago, The sum of age of a family of four members = 45 × 4 = 180 years Now at present, The sum of age of four members = 180 + 18 × 4 =252 years Let the Present age of younger child be x years And the present age of older child = (x + 12) years Now, as per the question 252 + x + 12 + x = 45 × 6 2x = 270 – 264 2x = 6 x = 3 Present age of the older child = x + 12 = 3 + 12 = 15 years Present age of the younger child = x = 3 years Respective ratio = 15 : 3 = 5:1
The climate(A)/ of Mumbai (B)/ is better than Hyderabad.(C)/ No error(D)
Identify the segment that contains a grammatical error. If there is no error, select 'No error'.
We should be cautious while placing our trust in...
Each question in this portion has a sentence with three parts (a), (b) and (c). Read each sentence to find out whether there is any error in a...
Guru Gobind Singh said it was our duty to come to the defence of all those who were threatened through no fault of their own.
Nuclear Energy, one of the best way (1)/ to generate energy through (2)/ fission and fusion, is being (3)/ misused by countries to make weapons (4)/ No ...
Look at the shorter term, (A)/the interbank market rates (B)/suggest that the cycle will (C)/turn up again early next year (D).
The awardees will be chosen for his contributions in education, health and rural development.
Read the given sentence to find out whether there are any grammatical/contextual errors in it. The errors, if any, will be in two of the phrases of the...
Many American politicians (A)/ have been blaming the (B)/ continuous lose of American jobs (C)/ on globalisation aided (D)/ by digital technology. €...
Despite its widespread popularity (A)/among Florida's politicians, (B)/the bond cap statue was not (C)/entirely kosher from a constitutional point of vi...