What is the value of 497 - 505-

497 × 505 nbsp; nbsp; = (500 – 3) (500 + 5) = 500^2 + (–3 + 5) × 500 + (–3) (5) [(x + a) (x + b) = x^2 + (a + b) x + ab] = 250000 + 1000 – 15 = 250985 ...

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Standard VIII

Mathematics

Letters for Digits

What is the v...

Question

What is the value of $497 \times 505$ ?

250985

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251985

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259865

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Solution

The correct option is A 250985
$497 \times 505 = (500 - 3) (500 + 5)$
$= 500^{2} + (- 3 + 5) \times 500 + (- 3) (5)$
$[(x + a) (x + b) = x^{2} + (a + b) x + a b]$
$= 250000 + 1000 - 15$
$= 250985$

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Similar questions

Q. Using suitable identities, evalute

497 \times 505

Find the values of the following:

A. 497* 37+ 497*13

The value of 249² – 248² is
(a) 1
(b) 477
(c) 487
(d) 497

Q. The value of (249)² – (248)² is
(a) 1²
(b) 477
(c) 487
(d) 497

Q. Question 15
The value of

249^{2} - 248^{2}

is

A)

1^{2}

477

487

497

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What is the value of 497×505?

The correct option is A 250985497×505=(500–3)(500+5) =5002+(–3+5)×500+(–3)(5) [(x+a)(x+b)=x2+(a+b)x+ab] =250000+1000–15 =250985

What is the value of $497 \times 505$ ?

The correct option is A 250985
$497 \times 505 = (500 - 3) (500 + 5)$
$= 500^{2} + (- 3 + 5) \times 500 + (- 3) (5)$
$[(x + a) (x + b) = x^{2} + (a + b) x + a b]$
$= 250000 + 1000 - 15$
$= 250985$