Question

80 50 130 100 180 150 900 (A) (B) (C) (D) (E) which number will come in place of (c) a)1050 b) 920 c) 1000 d) 950​

Answer 1

Answer:

Required value of C is 810.

Step-by-step explanation:

Given, 80 50 130 100 180 150 900 (A) (B) (C) (D) (E)

This is a problem of General inteligence chapter of Mathematics.

If we notice carefully then we can see that here each term maintain a sequence.

Here,

First term is 80.

second term is $50 = 80 - 30$

and third term is 130

fourth term is $100 = 130 - 30$

and fifth term is 180

Sixth term is $150 = 180 - 30$

It is clear that if x,y are two terms of given series.

So, according to rule $y = x - 30$

So,

$A = 900 - 30 = 870 \\ B = 870 - 30 = 840 \\ C = 840 - 30 = 810 \\ D = 810 - 30 = 780$

So, required value of C is 810.

This is a problem of Mathematics.

Some important Mathematics formulas are

${(x + y)}^{2} = {x}^{2} + 2xy + {y}^{2} \\ {(x - y)}^{2} = {x}^{2} - 2xy + {y}^{2} \\ {(x + y)}^{3} = {x}^{3} + 3 {x}^{2} y + 3x {y}^{2} + {y}^{3} \\ {(x - y)}^{3} = {x}^{3} - 3 {x}^{2} y + 3x {y}^{2} - {y}^{3} \\ {x}^{3} + {y}^{3} = {(x + y)}^{3} - 3xy(x + y) \\ {x}^{3} - {y}^{3} = {(x - y)}^{3} + 3xy(x - y) \\ {x}^{2} - {y}^{2} = (x + y)(x - y) \\ {x}^{2} + {y}^{2} = {(x - y)}^{2} + 2xy \\ {x}^{2} - {y}^{2} = {(x + y)}^{2} - 2xy \\ {x}^{3} - {y}^{3} = (x - y)( {x}^{2} + xy + {y}^{2} ) \\ {x}^{3} + {y}^{3} = (x + y)( {x}^{2} - xy + {y}^{2} )$

Two more important Mathematics problem:

1) https://brainly.in/question/13024124

2) https://brainly.in/question/1169549

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