(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

Use graph paper for this question. The following table shows the weights in gm of a sample of 100 potatoes taken from a large consignment:

(i) Calculate the cumulative frequencies.
(ii) Draw the cumulative frequency curve and form it determine the median weights of the potatoes.

Find the value of x in the following proportions : 10 : 35 = x : 42

Find the value of x in the following proportions : 3 : x = 24 : 2

Find the value of x in the following proportions : 2.5 : 1.5 = x : 3

Find the value of x in the following proportions : x : 50 :: 3 : 2

Find the fourth proportional to 3, 12, 15

Find the fourth proportional to `(1)/(3), (1)/(4), (1)/(5)`

Find the fourth proportional to 1.5, 2.5, 4.5

Find the fourth proportional to 9.6 kg, 7.2 kg, 28.8 kg

Find the third proportional to 5, 10

Find the third proportional to 0.24, 0.6

Find the third proportional to Rs. 3, Rs. 12

Find the third proportional to `5(1)/(4) and 7.`

Find the mean proportion of: 5 and 80

Find the mean proportion of: `(1)/(12) and (1)/(75)`

Find the mean proportion of: 8.1 and 2.5

Find the mean proportion of: (a – b) and (a³ – a²b), a> b

If a, 12, 16 and b are in continued proportion find a and b.

What number must be added to each of the numbers 5, 11, 19 and 37 so that they are in proportion?

What number should be subtracted from each of the numbers 23, 30, 57 and 78 so that the remainders are in proportion ?