ads
Hello Students,

Here we are providing you some tricks which can be helpful to solve Quant questions. These can be applied for solving the questions.

To find greater between fractions without calculating their decimal values.

Here is a short example:
Consider 4/5 and 6/7
Cross multiply the numerator and denominator of both the fractions.
4 × 7 = 28            6 × 5 = 30
30 > 28 so the fraction carrying 6 as numerator is greater, i.e. 6/7 > 4/5
* You can use this method when you are asked to find out the greatest or smallest among given fractions.

Method to solve mixed fractions.

  1. Here is an example:
    Consider finding the value for 2(1/3) + 4(2/7) + 5(1/6).
    This can be calculated as:
    (2 + 4 + 5) + [(1/3) + (2/7) + (1/6)] = 11 + (14 + 12 + 7)/42
    = 11 + 33/42
    = 495/42
    Now similarly 2(1/3) + 4(2/7) – 5(1/6)
    = (2 + 4 – 5) + [(1/3) + (2/7) – (1/6)] = 1 + (14 + 12 – 7)/42
    = 1 + 19/42
    = 61/42

Radical Symbol (√)

  1. When x^2 = 25, then x = 5 and -5 because 5 × 5 = 25 and also (-5) × (-5) = 25
    But when x = √25 or 25^1/2, then x = 5 only because when radical symbol is used, we can take only positive (or zero) values.

Squares of numbers ending with 5.

  1. Consider examples:
    (25)^2 = 2 × 3 | 5 × 5 = 625
    (85)^2 = 8 × 9 | 5 × 5 = 7225
    (105)^2 = 10 × 11 | 5 × 5 = 11025

  1. Multiplication with number 15.

  1. 120 × 15 = 120 + (120/2) = 120 + 60 = 1800
    162 × 15 = 162 + (162/2) = 162 + 81 = 2430
    185 × 15 = 185 + (185/2) = 185 + 92.5 = 2775

Thanks
For More Exams Notifications & Coaching Classes & Training Stay tuned with
AIMSUCCESS.IN
Content Partner:

IBTS

India's Leading Institution for Competitive Exams in Chandigarh

Call :- 9316488822 / 88821....
ads
Share To:

IBTS INSTITUTE

India's Leading Institution for Competitive Exams in Chandigarh visit www.ibtsindia.com

Post A Comment:

0 comments so far,add yours