Question
In an examination the average marks of Rohit is 55. If
he got 15 more marks in science and 27 more marks in maths then his average would have been 61. Find the total number of subjects he studied?Solution
Let total number of subjects be x. Then, => (55x + 27 + 15)/x = 61 => 55x + 27 + 15 = 61x => 6x = 42 => x = 7
In each of the following question assuming the given statement to be true, find which of the conclusion among given conclusions is/ are definitely true...
No chairs are tables
Mostly tables are benches
Each bench is desk.
Conclusions-:
I. A few tables are desks.
II. Few chairs are benches.
Statements:
Some hotels are rooms. Â Â Â Â Â Â Â Â Â Â Â Â
Some rooms are keys. Â Â Â Â Â Â Â Â Â Â
All keys are bungalows....
Statements:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â No red is a pink.
                              ...
Statements:All Januarys are Februarys.
No February is March.
All marches are Aprils.
Conclusions:
I. Some March are not Febr...
In the questions given below, there are three statements followed by three conclusions I, II and III. You have to take the three given statements to be...
Statements: Some speaker are enjoyment.
                         No enjoyment is a music.
Conclusions: I. ...
Statements: Â Â Â Â Â Some news are telecasts.
All telecasts are satellites.
All satellites are emissions.
Conclusions:Â Â ...
Statements:
All shoes are shirts
Only a few shirts are watches
Some watches are not mobile
Only a few mobile are copy
...Statement:
I) No monday is january
II) No january is friday
III) Some november are friday
IV) All november are good
...
