Question

If 2.5 + 0.5-[1.6-{3.2-(3.2+2.1)+k}]=0.65, then k =​

Answer 1

Step-by-step explanation:

Given 2.5+0.05−[1.6−{3.2−(3.2+

x

2.1

)}]=0.65

⇒2.5+0.05−[1.6−{3.2−3.2−

x

2.1

}]=0.65

⇒2.55−[1.6+

x

2.1

]=0.65

⇒2.55−1.6−

x

2.1

=0.65

⇒0.95−

x

2.1

=0.65⇒

x

2.1

=0.95−0.65=0.30⇒x=

0.30

2.10

=

30

210

=7

Answer 2

Answer:

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