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What number should be subtracted from $− 23$ to get $− 56$ ?

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26

16

13

56

answer is B.

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Detailed Solution

Here, we have to find a number that is subtracted from

− 23

to get

− 56

.
Assume the number that is to be subtracted as x.

⇒ − 2 3 − x = − 5 6 ⇒ − x = − 5 6 − − 2 3

Take L.C.M of

6 and 3 = 6

⇒ − x = − 5 + 4 6 ⇒ − x = − 1 6

Multiply both the sides with

(− 1)

⇒ − x × − 1 = − 1 6 × − 1 ⇒ x = 16

Hence, the number should to be subtracted from

− 23

to get

− 56

16

.
Therefore, option 2 is correct.

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