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)
= 37.25
2). The average weight of 15 members in a football team is 24 kg when a new member included, the average weight increases by 2. What is the weight of the new member?
Total weight of 15 member = 24 x 15 = 360
Average after including a new member = 24 + 2 = 26
Total weight of 16 member = 26 x 16 = 416
Weight of the new member = Total weight of 16 member - Total weight of 15 member
= 416 - 360
= 56.
Click here to search study notes. Click here to view all Kerala PSC Study notes. Click here to read PSC Question Bank by Category wise. Click here to Test your knowledge by atteneding Quiz.Almonds Prunus Armenica .
Apple Melus Pumia / Domestica .
Bajra Penisitum americanum .
Bamboo Bambusa Spay .
Banana Musa Paradisiaca .
Banyan Ficus Bandhanlensis .
Bear Ursus matitimus carnevera .
Black Pepper Piper Nigrum .
Buffalo Bubalis Bubalis .
Camel Camelus Domedarius .
Cardamom Ilateria cordemomum .
Carrot Dakas Carota .
Cashew Anacardium aromaticum .
Cat Felis domestica .
Cauliflower Brassica aulracea .
Coffee Coffea Arabica .
Corn Jia Mej .
Cotton Gaspium .
Cow Boss Indicus .
Deer Cervus Elaphas .
Dhaan Oriya Sativat .
Dogs Canis Families .
Dolphin Platenista gangetica .
Elephant Afilas Indica .
Fox Canidae .
Frog Rana Tigrina .
Garlic Allium ceraivan .
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64th 2016 Kasinadhuni Viswanath Filmmaker , Actor .
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49th 2001 Yash Chopra Director , Producer .
48th 2000 Asha Bhosle Singer .
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Wrong Usage Right Usage .
Die of hunger Die from hunger .
Good/Weak in Mathematics Good/Weak at Mathematics .
Jump in the pond Jump into the pond .
Lying upon the desk Lying on the desk .
Pakistan is in the Pakistan is to the west of India .
Part from money Part with money .
Part with a man Part from a man .
Prefer than Prefer to .
Send on my address Send to my address .
She is married with him She is married to him .
Since the last two weeks For the last two weeks .
Sit under the shade Sit in the shade of tree .
Time in your watch Time by your watch .
To go in train To go by train .
To meet in the way To meet on the way .
Word by word Word for word .
Write with ink Write in ink .
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