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Mathematics Preparation for MCA Entrance

(484 Posts)

This thread is dedicated to preparation for Mathematics section of MCA Entrance exams like IITJAM, ICET, NIMCET, TANCET and other MCA entrance exams conducted by institutes like Thapar, Pune University, JNU etc. You may share questions related to topics like Differential Calculus, Set Theory and Relations, Binomial Series, Quadratic Equations, Functions and Equations, Sequence/Series, Exponential and Logarithmic Series, Statistics, Modern Algebra, Co-Ordinate Geometry, Trigonometry, Integral Calculus, Complex Numbers, Matrices and Determinants, Vectors, 3-D Geometry, Permutation and Combination, Probability etc.

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Juhaib Khan
Shared from Average on 01 Dec, 2017 4:20 AM

In a cargo hold, there are some boxes of different weights that are consecutive natural numbers. The lightest of all the boxes weighs 1 pound. When weight of one of boxes is not counted, the average weight of all the boxes is 95 pounds. Which of the following can be the weight of the box not included?

 
45
95
189
190
191
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Juhaib Khan
Posted on 01 Dec, 2017 4:20 AM

Question clear by to the step-step explanation do it.

Juhaib Khan
Shared from Average on 01 Dec, 2017 4:07 AM

The marks of three students Adam, Rafael and Sara are such that when marks obtained by one student are added to the average of marks obtained by the other two students in all possible combinations, the three different numbers obtained are 65, 69 and 76. Find the average marks obtained by the three students.

 
33
35
36
37.5
34
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Juhaib Khan
Posted on 01 Dec, 2017 4:07 AM

Question is not clear.

Prarthan Ramesh
Posted on 16 Jun, 2017 12:42 PM

(3x -1/2x+3) to the power 4 -5 (3x-1/2x+3) to the power 2 +4 =0

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Abdul Rahim
Posted on 24 Apr, 2017 9:06 AM

GdFgbhddcvhhgfsdfhh

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Saiprashanth Pulishetti
Shared from Linear & Quadratic Equations on 06 Apr, 2017 4:29 PM

Adam went to purchase certain product of stationary to the city stationary store. There were three packages for the product pen, pencils and erasers. The cost of 4 pen, 6 pencils and 8 erasers was ‘a’. The cost of 5 pen, 8 pencils and 11 erasers is ‘b’. The cost of 8 pen, 14 pencils and 20 erasers is ‘c’. Which of the following equation is always true?

 
– 3a + 4b = c
– 4c + 3a =
– 3a + 4b =
3a + 4b =
3a + 4b = 3 c
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Mahmood Alam
Posted on 14 Oct, 2017 10:18 PM

-3a+4b=cn-3×18+4×24=42