Question

what number should be multiplied with 35/42 so that the square root of the product will give 2

Answer 1

Answer :

Let us consider that the required number is x

Then,

35/42 × x = 35x/42

By the given condition,

√(35x/42) = 2

⇒ 35x/42 = 4,
squaring both sides

⇒ x = (4 × 42)/35

⇒ x = (4 × 6)/5

⇒ x = 24/5

Therefore, the required number is 24/5.

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Answer 2

Hi there!

Let that number be = n

Then,

35 / 45 × n = 35n / 45 = 5n / 6

ATQ,

√5n / 6 = 2

Squaring both sides of the eqn.

5n / 6 = 2²

5n / 6 = 4

n = 4 × 6 / 5

n = 24 / 5

Hence,
The required no. = n = 24 / 5 should be multiplied to get product as 2

Hope it helps! :)