Secondary School (English Medium) (5 to 8) इयत्ता ७ - CBSE Question Bank Solutions

The probability of the spinning arrow stopping in the shaded region (Figure) is `1/2`.

A coin is tossed 15 times and the outcomes are recorded as follows:

H T T H T H H H T T H T H T T. The chance of occurrence of a head is 50 per cent.

The probability of getting an ace out of a deck of cards is greater than 1.

Following cards are put facing down:

\[\boxed{\text{A}}\] \[\boxed{\text{E}}\] \[\boxed{\text{I}}\] \[\boxed{\text{O}}\] \[\boxed{\text{U}}\]

What is the chance of drawing out

1. a vowel
2. a card marked U
3. A or I
4. a consonant

Following cards are put facing down:

What is the chance of drawing out a card marked U?

Following cards are put facing down:

What is the chance of drawing out A or I?

Following cards are put facing down:

What is the chance of drawing out a consonant?

What is the probability of the sun setting tomorrow?

When a spinner with three colours (Figure) is rotated, which colour has more chance to show up with arrow than the others?

What is the probability that a student chosen at random out of 3 girls and 4 boys is a boy?

The letters written on paper slips of the word MEDIAN are put in a bag. If one slip is drawn randomly, what is the probability that it bears the letter D?

Classify the following events:

Getting a number less than 1 on throwing a die.

Classify the following events:

Getting head when a coin is tossed.

Classify the following events:

A team winning the match.

Classify the following events:

Christmas will be on 25 December.

Classify the following events:

Today moon will not revolve around the earth.

Classify the following events:

A ball thrown up in the air will fall down after some time.

The triangle ABC formed by AB = 5 cm, BC = 8 cm, AC = 4 cm is ______.

How many altitudes does a triangle have?

Which of the following figures will have it’s altitude outside the triangle?