Question
A boatman rows 10 km in 15 minutes, along the stream and
50 km in 2 hours against the stream. The speed of the stream is:Solution
Rate downstream = 10/15 x 60 = 40 km/hr Rate upstream = 50/2 = 25 km/hr Speed of current = 1/2 (Rate downstream – Rate upstream) ⇒ 1/2 (40 – 25) km/hr = 7.5 km/hr
If ‘L’ is the brother of ‘O’, ‘O’ is the son of ‘K’, and ‘M’ is the father of ‘L’, then how is ‘K’ related to ‘L’?
...If ‘B × C # D @ E * F @ G’ is true then how is C related to G?
- Mohan is son of Akash. Manchun is father-in-law of Akash. Kamla is daughter-in-law of Paravati who is married to grandfather of Mohan. How is Kamla related...
If 'A - B' means 'A is the mother of B', 'A @ B' means 'A is the sister of B', 'A # B' means 'A is the husband of B', 'A & B' means 'A is the son of B',...
- A, B and C are siblings. B’s mother is daughter of K. K is wife of M, whose son-in-law is brother of L. How is C’s mother related to L?
E + F means E is daughter of F. E - F means E is husband of F. E × F means E is sister of F. E ÷ F means F is father of E. If L + M – N + O × P –...
How is ‘B’ related to ‘E'?
How manyfemale membersare there in the family?
In a family of six persons, D is mother of L. M is son of E and L is brother of M. K is sister in law of G, who is married to M. There are three married...
‘A + B’ means 'A is mother of B’, ‘A – B’ means 'A is brother of B', ‘A ÷ B’ means 'A is father of B’, ‘A × B’ means 'A is h...
