The present age of two persons are 42 and 81 years. If after n years the ratio of their ages will be 4: 7, then the value of n is
a)
8
b)
6
c)
9
d)
10
The present age of two persons are 42 and 81 years. If after n years the ratio of their ages will be 4: 7, then the value of n is
a)
8
b)
6
c)
9
d)
10
Question ID - 51948 | SaraNextGen Top Answer
The present age of two persons are 42 and 81 years. If after n years the ratio of their ages will be 4: 7, then the value of n is
a)
8
b)
6
c)
9
d)
10
|
The present age of two persons are 42 and 81 years. If after n years the ratio of their ages will be 4: 7, then the value of n is |
|||||||
|
a) |
8 |
b) |
6 |
c) |
9 |
d) |
10 |
1 Answer
127 votes
Answer Key / Explanation : (d) -
, check with options, put 
, 6, 9, 10 & which makes LHS = 
127 votes
Answer Link
127