Tell whether the following is certain to happen, impossible, can happen but not certain.
(i) You are older today than yesterday.
(ii) A tossed coin will land heads up.
(iii) A die when tossed shall land up with 8 on top.
(iv) The next traffic light seen will be green.
(v) Tomorrow will be a cloudy day.

Solution:

(i) Event: You are older today than yesterday.

We keep growing older with time.

So, it is certain to happen.

(ii) Event: A tossed coin will land heads up.

Probability: when a coin is tossed, there are two possibilities either a head {H} or a tail {T}.

So, it can happen but not certain.

(iii) Event: A die when tossed shall land up with 8 on top.

Probability: When a dice is tossed, there are only six outcomes i.e., {1, 2, 3, 4, 5, 6}

So, it is an impossible event.

(iv) Event: The next traffic light seen will be green.

Probability: The traffic light could be red, green, or orange.

So, it can happen but not certain.

(v) Event: Tomorrow will be a cloudy day.

Weather cannot exactly be predicted hence not certain.

So, it can happen but not certain.

☛ Check: NCERT Solutions for Class 7 Maths Chapter 3

Video Solution:

Tell whether the following is certain to happen, impossible, can happen but not certain. (i) You are older today than yesterday. (ii) A tossed coin will land heads up. (iii) A die when tossed shall land up with 8 on top. (iv) The next traffic light seen will be green. (v) Tomorrow will be a cloudy day.

NCERT Solutions for Class 7 Maths Chapter 3 Exercise 3.4 Question 1

Summary:

Let's check whether the following is certain to happen, impossible to happen, can happen but not certain. (i) You are older today than yesterday. It is certain to happen, (ii) A tossed coin will land heads. It can happen but not certain, (iii) A die when tossed shall land up with 8 on top. It is an impossible event, (iv) The next traffic light seen will be green. It is certain to happen, (v) Tomorrow will be a cloudy day. It can happen but not certain.

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