Question
The average of the first and second numbers is 20, while
the average of the second and third numbers is 25. If the sum of the first and third numbers is 44, find the first number.Solution
ATQ, Let, the number be a, b, and c respectively. According to the question, a+ b = 100 ... (1) b+ c = 108 ... (2) a + c = 106......(3) solve these equations From equation (1) and (3), Subtract to find c - b = 4 ....(4) b = c - 4 substitute b from (1) and (3) a + c = 44 a = 18
Conclusions:
I. Some Pickles are Pulses.
II. Few Bottles are Covers.
Statements:
Statement :No cup is a medal.
All medals are trophies.
No trophy is a shield.
Some shield are prizes.
Conclusion:
I. ...
Statements:
Some year are day.
Each year is month.
Only day are week.
Conclusions:
I. Some month are week.
II. Some month are year.
III. No year is week
Some laptops may be buses. Some buses are not mouse. Some pendrives may be buses.
Statements:
Some hotels are rooms.
Some rooms are keys.
All keys are bungalows....
Statements: Some cups are plates.
No plate is a glass.
Conclusions: I. Some glasses are cups.
II. No glass is a cup.
...In the question below are given some statements followed by some conclusions. You have to take the given statements to be true even if they seem to be ...
Conclusions:
I. Some Flats are Buildings.
II. Some Apartments are Flats.
III. No Building is a Roof.
Statements:
Statements:
Few Platform is Train
All Train is Ticket
No Train is Mall
Conclusion:
I. No Ticket is Mall
II....
In the question below there are three statements followed by two conclusions I and II. You have to take the three given statements to be true even if ...
Relevant for Exams:
