(English Medium) ICSE Class 9 - CISCE Question Bank Solutions for Mathematics

Construct the frequency distribution table from the following cumulative frequency table:

(i) State the number of students in the age group 10 - 13.
(ii) State the age-group which has the least number of students.

Construct a frequency table from the following data:

Construct a frequency distribution table from the following cumulative frequency distribution:

Construct a cumulative frequency distribution table from the frequency table given below:
( i )

( ii )

Construct a cumulative frequency distribution table from the frequency table given below:

The marks of 24 candidates in the subject mathematics are given below:

The maximum marks are 50. Make a frequency distribution taking class intervals 0 - 10, 10-20, .......

Given below are the marks obtained by 30 students in an examination:

Taking class intervals 1 - 10, 11 - 20, ....., 41 - 50; make a frequency table for the above distribution.

Construct a cumulative frequency distribution table from the frequency table given below:

Construct a frequency distribution table from the following cumulative frequency distribution:

A tank 20 m long, 12 m wide and 8 m deep is to be made of iron sheet. If it is open at the top. Determine the cost of iron-sheet, at the rate of Rs. 12.50 per meter, if the sheet is 2.5 m wide.

The area of a playground is 3650 m². Find the cost of covering it with gravel 1.2 cm deep, if the gravel costs Rs. 6.40 per cubic metre.

The cost of papering the four walls of a room at 75 paise per square meter Rs. 240. The height of the room is 5 meters. Find the length and the breadth of the room, if they are in the ratio 5 : 3. 

Evaluate: `(sec 75°)/("cosec" 15°)`

Evaluate: sec² 18° - cosec² 72°

Evaluate: cosec (65° + A) - sec (25° - A)

Find the amount and the compound interest payable annually on:
Rs.16000 for 2 years at 15% and 12% for the successive years.

Find the amount and compound interest on Rs.7500 for 1`(1)/(2)` years at 8%, payable semi-annually.

Sunil borrows Rs.50,000 at 10% S.I. for 1`(1)/(2)` years. He immediately invests the entire amount for 1`(1)/(2)` years at 10% compounded annually. What is his gain at the end of the stipulated time, when he repays his loan?

Samidha borrowed Rs.7500 from Shreya at 30% per annum compounded interest. After 2 years, Samidha gave Rs.10000 and a juicer to Shreya to clear the debt. Find the cost of the juicer.

Find the amount and the compound interest on the following:
Rs.8000 for 3years at 10% per annum compounded annually.