1.

1). 10.12). 15.13). 5.34). 20

Answer»

In this type of question, we are expected to calculate Approximate VALUE (not exact value), so we can replace the given numbers by their nearest perfect places which makes the calculation easy.

Let, 24.95 ≈ 25, 9.88 ≈ 10, 1010 ≈1000, 624 ≈625, 51 ≈ 50 and 499 ≈ 500

Now, given EXPRESSION:

$(\Rightarrow {\left( {\FRAC{{25}}{{10}}} \right)^2} \times \frac{{1000}}{{625}} + \frac{{50}}{{500}} = ?)$

$(\Rightarrow {\RM{\;}}? = {\left( {\frac{{25}}{{10}}} \right)^2} \times \frac{{1000}}{{625}} + \frac{{50}}{{500}})$

$(\Rightarrow {\rm{\;}}? = \frac{{625}}{{100}} \times \frac{{1000}}{{625}} + \frac{{50}}{{500}})$

⇒ ? = 10 + 0.1

⇒ ? = 10.1

Hence, the required answer is 10.1


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