Question

Latif's Maths teacher asks him to think of any whole number from 1 to 10. She then asks him to do the following: 1. Double this number. 2. Add 4 to the result. 3. Multiply the sum by 5. If we call the number Latif thinks of N, the number he gets at the end will be

Answer 1

The number he gets at the end will be (N + 2) * 10.

Step-by-step explanation:

Let the number Latif thinks be N,

Now, according to the details given in the question:-

1). Double the number = N * 2

2). Adding 4 to the result, we get

= 2N + 4

3). Now, multiplying it by 5 we get;

(2N + 4) * 5

= 10N + 20

4). The end product he gets by taking 10 as common:

= (N + 2) 10

Thus, option A is the correct answer.

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Answer 2

10N + 4

N + 4 × 2 × 5

(2N + 4) × 5

(N × 2) + (4 × 5)