If the sum of upstream and downstream speed is 28 km/hr and the speed of the current is 6 km/hr. Then find time taken to cover 50 km in downward?
Let the speed of boat in still water be x km/hr. According to the question, => x + 6 + x − 6 = 28 => x = 14 Downstream speed = 6 + 14 = 20 km/hr Required time = 50/20 = 2.5 hrs
Two Statements are given, followed by three conclusions numbered I, II and III. Assuming that the information given in the statement s is true, even if...
Statements:Some mugs are soaps.
Some soaps are taps.
Conclusions:I. Some taps are mugs.
II. No mugs is tap.
All books are copy.
Only a few books are pen.
Some copy are pencil.
Some designations are descriptions
Some descriptions are securities
No security is a position
All spoons are forks.
All plates are forks.
All forks are bowls.
I. All spoons are not ...
Only poles are wires
Only few poles are ornaments
All ornaments are copper
I. All p...
Statements: No data is a number.
Some numbers are not letters.
Only letters are consonants.
Conclusions: I. All letters may be co...
Statements: Some books are notebooks.
No notebooks is a pages.
Only a few diamond are Gold
All Silver are Gold
Only a few Silver are platinum
No Platinum is rhodium <...
Which of the following means K is grandmother in law of M?