Acids In Various Substances

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A bolt from the blue : Unexpected incident .
A chip on your shoulder : Being upset for something that happened in past.
A slap on the wrist : Very mild punishment.
A stone through : Short distance.
A wolf in sheep clothing : A person who cannot be trusted.
Add fuel to the fire : To worsen a situation.
Against the clock : As fast as possible before a deadline.
All Greek to me : Something which cannot be understood.
An arm and a leg : Very expensive.
An axe to grind : To have dispute with someone.
At one's wit's end : Not knowing what to do.
At sixes and sevens : In utter disorder.
At the drop a hat : Showing readiness.
At the eleventh hour : At the last moment.
Baker's dozen : Thirteen.
Beat a dead horse : To force an issue that has already ended.
Beating around the bush : Avoiding the main topic.
Bite your tongue : To...

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മലയാള വ്യാകരണം - വിപരീതപദങ്ങൾ അച്‌ഛം X അനച്‌ഛം.
അതിശയോക്തി X ന്യൂനോക്തി.
അനുലോമം X പ്രതിലോമം.
അപഗ്രഥനം X ഉദ്ഗ്രഥനം.
അബദ്ധം X സുബദ്ധം.
അഭിജ്ഞൻ X അനഭിജ്ഞൻ.
ആകർഷകം X അനാകർഷകം.
ആദി X അനാദി.
ആദിമം X അന്തിമം.
ആധിക്യം X വൈരള്യം.
ആധ്യാത്മികം X ഭൗതികം.
ആന്തരം X ബാഹ്യം.
ആയാസം X അനായാസം.
ആരോഹണം X അവരോഹണം.
ആവരണം X അനാവരണം.
ആവിർഭാവം X തിരോഭാവം.
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N = the number of terms  .

S = the sum of the numbers in the set.

Average = S/N .


For example.

The marks of a student in five subjects are 96, 94, 92, 87, and 81, then what is the average score of the student?.

N = 5.

S = 96 + 94 + 92 + 87 + 81 = 450.

A = 450/5 = 90.


Another type questions .

1). There are 36 boys and 44 girls in a class. The average score of boys is 40 and girls are 35. Then what will be the average mark? .


Total mark of 36 boys = 36 x 40 = 1440.

Total mark of 44 girls = 35 x 44 = 1540.

Total mark of 80 Students = 1440 + 1540 = 2980 .

Average mark of the class = (2980 / 80).

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