ICSE ICSE Class 7 - CISCE Question Bank Solutions for Mathematics

Subtract the second expression from the first:

2a + b, a + b

Subtract the second expression from the first:

−2b + 2c, b + 3c

Subtract the second expression from the first:

5a + b, - 6b + 2a

Subtract the second expression from the first:

a³ - 1 + a, 3a - 2a² 

Subtract the second expression from the first:

p + 2, 1

Subtract the second expression from the first:

x + 2y + z, - x - y - 3z

Subtract the second expression from the first:

3a² - 8ab - 2b² , 3a² - 4ab + 6b² 

Subtract the second expression from the first:

4pq - 6p² - 2q² , 9p² 

Subtract the second expression from the first:

10abc, 2a² + 2abc - 4b² 

Subtract the second expression from the first:

a² + ab + c², a² - d² 

A coin is tossed 80 times and the head is obtained 38 times. Now, if a coin tossed once, what will the probability of getting a tail

A coin is tossed 80 times and the head is obtained 38 times. Now, if a coin tossed once, what will the probability of getting a  head

A dice is thrown 20 times and the outcomes are noted as shown below:

Now a dice is thrown at random, find the probability of getting:

A survey of 50 boys showed that 21 like tea while 29 dislike it. Out of these boys, one boy is chosen at random. What is the probability that the chosen boy
(i) likes tea
(ii) dislikes tea

In a cricket match, a batsman hits a boundary 12 times out of 80 balls he plays, further, if he plays one ball more, what will be the probability that:
(i) he hits a boundary
(ii) he does not hit a boundary

There are 8 marbles in a bag with numbers from 1 to 8 marked on each of them. What is the probability of drawing a marble with a number
(i) 3
(ii) 7

Two coins are tossed simultaneously 100 times and the outcomes are as given below:

If the same pair of coins is tossed again at random, find the probability of getting:
(i) two heads
(ii) exactly one head
(iii) no head.

A bag contains 4 white and 6 black balls,- all of the same shape and same size. A ball is drawn from the bag without looking into the bag. Find the probability that the ball drawn is:
(i) a black ball
(ii) a white ball
(iii) not a black ball

In a single throw of a dice, find the probability of getting a number 4

In a single throw of a dice, find the probability of getting a number 6