Question

3. 63-[(-3) {-2-8-3 }] ÷ [3{5+(-2)(-1)}])

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Answer 1

Answer ♡

Given,

• if 40% of a number is equal to

two third of another number.

To find ,

• Ratio of the first number to the

second number .

Solution ,

Let

• A and B be the two number

such that.

According to the question

• 40% of A = 2/3 B

Now ,

• 40 A/100 = 2B/3

• A/B = (2/3 × 5/2)

• A/B = 5/3

• A:B = 5:3

Hence,

• the ratio of the first number to

the second number is 5:3

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Answer 2

Answer:

63 - (-3)( - 2 - (8 - 3)) ÷ 3 ( 5 + (-2)(-1))

= 63 - (-3)(- 2 - 5) ÷ 3 ( 5 + 2)

= 63 - (-3)(-7) ÷ 3 ( 7)

= 63 - (21) ÷ 21

= 63 - 21 ÷ 21

= 42 ÷ 21

= 2

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