Verbal Reasoning - Arithmetic Reasoning - Discussion
Discussion Forum : Arithmetic Reasoning - Section 1 (Q.No. 14)
14.
12 year old Manick is three times as old as his brother Rahul. How old will Manick be when he is twice as old as Rahul ?
Answer: Option
Explanation:
Manick's present age = 12 years, Rahul's present age = 4 years.
Let Manick be twice as old as Rahul after x years from now.
Then, 12 + x = 2 (4 + x) 
12 + x = 8 + 2x x = 4.
Hence, Manick's required age = 12 + x = 16 years.
Discussion:
4 comments Page 1 of 1.
Raveena chavan said:
6 years ago
3/12 = 2/x.
3x = 24 ; cross multiplication.
x = 24/3.
x = 8.
As twice mentioned,we have to multiply by 2.
X = 8x2.
X = 16 answer.
3x = 24 ; cross multiplication.
x = 24/3.
x = 8.
As twice mentioned,we have to multiply by 2.
X = 8x2.
X = 16 answer.
(2)
Usha said:
6 years ago
Manick age that is 12=3 * Rahul age.
12=3 * 4.
Rahul age becomes 4 then only it equals to Manick age =12.
12=3 * 4.
Rahul age becomes 4 then only it equals to Manick age =12.
(1)
Kindorji said:
6 years ago
How comes Rahul's present age 4 when its says Manick is 3 times greater than Rahul?
(1)
TNS said:
1 decade ago
B. 16 years.
12 year old Manick is three times as old as his brother Rahul who must be 4 years old.
Diff in ages = 8 years.
When Rahul will become 8 years old, manick will be 16 years old and he will be twice as old as Rahul.
12 year old Manick is three times as old as his brother Rahul who must be 4 years old.
Diff in ages = 8 years.
When Rahul will become 8 years old, manick will be 16 years old and he will be twice as old as Rahul.
(6)
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