Question

The hcf of two numbers a and b is 7 and their lcm is 400. Their products ab is​

Answer 1

Answer:

2800 is the answer for your question

Answer 2

Answer:

Given :-

• The HCF of two numbers a and b is 7 and their LCM is 400.

To Find :-

• What is the value of product ab.

Solution :-

Given :

➲ HCF of a and b = 7

➲ LCM of a and b = 400

As we know that :

$\footnotesize\: \: \bigstar\sf\boxed{\bold{\pink{Product\: Of\: Two\: Numbers =\: H.C.F \times L.C.M}}}$

According to the question by using the formula we get,

$\implies \sf a \times b =\: 7 \times 400$

$\implies \sf ab =\: 2800$

$\implies \sf\bold{\red{ab =\: 2800}}$

${\small{\bold{\underline{\therefore\: The\: value\: of\: product\: ab\: is\: 2800\: .}}}}$

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VERIFICATION :-

$\implies \sf a \times b =\: 7 \times 400$

$\implies \sf ab =\: 2800$

By putting ab = 2800 we get,

$\implies \sf 2800 =\: 2800$

$\implies \sf\bold{\purple{2800 =\: 2800}}$

$\implies \bf L.H.S = R.H.S$

Hence, Verified.