Question

please answer this que​

Answer 1

Answer:

330

Step-by-step explanation:

330

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Answer 2

Given:-

Diameter of wheel is 2.1 m.

Distance covered by wheel is 3.3 km

To Find:-

Turns done by the wheel

Solution:-

To find the turns made by wheel ⇒ $\dfrac{Distance}{Circumference}$

Circumference ⇒ πd

                         ⇒ $\dfrac{22}{7}$ × 2.1 m

                         ⇒ 6.6 m

Distance ( in m ) ⇒ 3.3 × 1000 m

                           ⇒ 3,300 m

Now, Turns made by wheel ⇒  $\dfrac{Distance}{Circumference}$

                                              ⇒ $\dfrac{3,300}{6.6}$  turns

                                              ⇒ 500 turns

Hence, the wheel will make 500 turns to cover 3.3 km.

Option ( 1 ) is correct.

Some important terms:-

• Circumference of circle = 2πr or πd            [ where, r is radius and d is diameter ]

• Turns = $\dfrac{Distance}{Circumference}$