# 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.

So, it is certain to happen.

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

Probability: when a coin is tossed, there are two chances of getting a {H} and {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 chances i.e. {1,2,3,4,5,6,}

So, it is impossible.

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

Probability: {red} {green}

So, it can happen but not certain.

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

So, it can happen but not certain.

**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

Tell whether the following is certain to happen, impossible to happen, 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.

(i) it is certain to happen, (ii) when a coin is tossed, there are two chances of getting a {H} and {T} So, it can happen but not certain, (iii)When a dice is tossed, there are only six chances i.e. {1,2,3,4,5,6,} So, it is impossible (iv) it is certain to happen, (v) it is certain to happen