Approximation a game Know How ?

Approximation: An approximation is anything that is similar but not exactly equal to something else.

(i) Method of approximation for Addition & subtraction equation: Let us understand this method with an example:

Example. Find the approximate value of ‘x’ upto 3 digit:

4673.483 + 8494.867 – 7526.461 = x – 894.356 + 143.793

(a)2200.698(b) 4860.564 (c) 6500.699 (d) 3886.648

Step 1: Convert the exact values into approximate values.

4673.483  4700, 8494.867 8500, 7526.461 7500, 894.356  900, 143.793  100

Step 2: Put the value approximate values in the equation

4700 + 8500 – 7500 = x – 900 + 100

Step 3: After solving the equation

x = 6500

6500 is the approximate value of x. So, option(c) is very near about 6500.

(ii) Method of approximation for multiplication & Division equation: Let us understand this method with an example:

Example: What is the approximate value nearly to ‘x’?
89487  124 x 19808  594 x 40238  873 = x?
(a)1086888 (b) 1857122(c) 80388 (d) 549534

Step 1: Convert the exact values into approximate values.
89487  89500, 124  125, 19808  19800, 594  600, 
40238 40250, 873  875

Step 2: Put the approximate values in the equation.

Step 3: After solving the equation
x = 1086888.
1086888 is the approximate value of x. So, option (b) is very near about 1086888.

(iii) Method of approximation for square roots & cube roots:

Example: What is the approximate value of ‘x’?

(a)44 (b) 76 (c) 56 (d) 34

Step 1: Put the approximate values near the square root and cube root of an equation.
5342.045329,
5013.036  4913, 5847, 7734  , 10649.876 10648.

Step 2: Put the value approximate values in the equation.

Step 3: After solving the equation
x = 73 + 17-18+4

x = 76.
Note: To get the result very near about the exact answer we should always decrease or increase some quantities to make the balance.

We have discussed concepts of Simplification and Approximation techniques in our article.

Hope this was helpful

All the best!!!

Simplest way to Simplification

Rules of Simplification: Basic rule to solve any simplification equations is “VBODMAS”. To solve any simplification equation, we have to follow the above order.

V → Vinculum

B → Remove Brackets - in the order ( ), { }, [ ] 

Where, ( )→ common bracket or parentheses, { }→ braces , [ ] → square brackets

O → Of
D → Division

M → Multiplication

A → Addition

S → Subtraction

Note: At the time of opening of brackets, if a negative sign comes before the brackets then we have to change the sign of the expression inside the bracket.

Let us understand this concept with an example:

Example: Simplify:

= 894 + [87 - {182 ÷ 13 x 5 + 8 - (1-4)}]

= 894 + [87 – {182 ÷ 13 x 5 + 8 -(-3)}]

= 894 + [87 – {182 ÷ 13 x 5 + 8 +3}]

= 894 + [87 – {14 x 5 + 8 +3}]

= 894 + [87 – {70 + 8 +3}]

= 894 + [87 – {81}]

= 894 + [6]

= 900.

We have seen the simple method to solve the simplification problems, now we will discuss the approaches to solving the simplification problems by approximation.

Age and qualifications diff between SBI & IBPS

SBI clerk vs IBPS clerk – शैक्षिक योग्यता –

SBI clerk  – उपरोक्त आवेदन करने हेतु उम्मीदवार को प्रशिक्षित स्नातक होना चाहिए।

IBPS clerk- उपरोक्त आवेदन करने हेतु उम्मीदवार को प्रशिक्षित स्नातक होना चाहिए।

SBI clerk vs IBPS clerk – आयु सीमा –

SBI clerk  –

श्रेणीआयु सीमा छुटसामान्य वर्ग21 से 30 वर्षअनुसूचित जाति/अनुसूचित जनजाति5 वर्षपिछड़ा वर्ग3 वर्ष

IBPS clerk–

श्रेणीआयु सीमा छुटसामान्य वर्ग21 से 28 वर्षअनुसूचित जाति/अनुसूचित जनजाति5 वर्षपिछड़ा वर्ग3 वर्ष

SBI clerk vs IBPS clerk – भूमिका और कार्यभार

आमतौर पर क्लर्क के पद पर सभी बैंकों में समान ही कार्यभार होता हैं। यह बैंकों में शिक्षित युवाओं के लिए शुरुआती बिंदु है। आमतौर पर नए क्लर्क भर्ती उम्मीदवार को कुछ हफ्तों के लिए प्रशिक्षण दिया जाता है और उनको प्रशासनिक कार्यालय में ही रखा जाता है। आपको फ्रंट ऑफिस में ऐसे कार्य दिए जाते हैं ,जिनमे आपका जनता के साथ सीधा संपर्क होता हैं। हालांकि, अधिकांश बैंकों को पूरी तरह से कम्प्यूटरीकृत किया जा रहा है, इसलिए आपका सारा काम कंप्यूटर पर ही होगा और साथ ही आपको पूरे दिन के लेनदेन का रिकॉर्ड रखना होता हैं।

How to prepare for airthmetic section of RRB

Dear Candidates

The competition is going to be very high for the RRB NTPC Exam. You can survive it only if you have a proper strategy. The arithmetic section will be one of the most challenging. Mockbank will help you formulate a proper strategy for the RRB NTPC Exam that will ensure you crack the exam with flying colours.