Q-3||Std 8 maths ch 9 || Exercise 9.1|| standard 8 maths ch 9 in gujarati|| Child Guruji

Discussion OF Exercise.-9.1(Q 11 to 16)|| Chapter summary

In a monthly test,the teacher decides that there will be three questions,one from each of Exercises 7,8 and 9 of the text book.If there are 12 questions in Exercise 7,18 in Exercise 8 and 9 in Exercise 9, in how many ways can three questions be selected?

Study the following arrangement carefully and answer the questions given below: 6 7 8 9 9 8 7 9 7 7 8 9 7 8 7 6 9 6 8 9 7 7 9 8 9 7 6 8 8 7 How many such numbers are there in the given series each of which when subtracted from the following number, has a difference of 2 ? 1) Three 2 ) Four 3)Five 4)Nine 5)None of these

The standard deviation of data 6,5,9,13,12,8 and 10 is

Suppose a child’s status in Math is equivalent to 9 years, in Science 10 years, in English 11 years and Hindi 12 years then his educational age is

Study the following arrangement carefully and answer the questions given below: 6 7 8 9 9 8 7 9 7 7 8 9 7 8 7 6 9 6 8 9 7 7 9 8 9 7 6 8 8 7 How many such odd numbers are there in the given series each of which is immediately preceded by an even number? 1) Five 2 ) Seven 3)Nine 4)Eleven 5)None of these

Find the variance and standard deviation of the scores 7 , 8 , 9 , 10 and 16.

Class 10 Maths | Chapter 9 | Some Applications of Trigonometry | Important Questions | Quick Revision

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